HH Cobalt Puller- More torque than any 540 available

[JohnRobHolmes]

Check out www.Holmeshobbies.com for availability of these beasts. Replacement brushes available now too.

I just got the final parts to the Cobalt Puller motors, and boy are these motors awesome! This is a departure from my normal style, these are good old BRUSHED motors fit to have the Holmes Hobbies name on them. They are for 2.2's, clods, and the 10T can be used in a super. The can is a bit longer than your standard motor, at around 2.5" long, so using them can provide a challenge with some link setups and clodbusters. It will bolt up inside a stock AX-10, a K2-3S(L) chassis, a stock Wheely King, and many more. It does not fit into a SW2 or SW3, GC-1, or similar narrow competition style chassis without careful tranny positioning or chassis modification. The diameter is 1.35", like a normal 540 motor. It mounts up to the standard 25mm bolt pattern, and uses 1/8" pinions like any standard motor. The best part is the LARGE 7 slot armature and large commutator. It allows a much higher commutation rate- giving better slow speed control and greater torque.

There are three winds available right now, very limited quantity. 10 turn, 7 turn, and 5 turn. Any of the winds can be crawled, as the 7 slot armature and large diameter commutator gives better control than the average motor. Some details from my website about the 10T motor:

Uses standard 1/8" pinions, and 25mm motor mount spacing- bolts up like a normal motor.


Strong Cobalt Samarium magnets
7 slot armature, 10 turn
6.5 ounces,
2.5" long, 1.35" diamter
5-12 volts
160*F max

Mamba Max highly recommended.

I have been crawling and testing these motors for a while now. At the last comp I ran the 10 turn with a 3 cell lipo in my 2.2. Slow speed control was second to none, and top wheelspeed was around 6-8 mph with a 84:1 geardown with mashers. That is tlt axles with an R2 tranny with 8 tooth pinion. Power was no problem of course, I could have gotten by with 6 cells nimh.

Pricing is $79.99. With increasing costs of high strength magnets and fewer manufacturers for brushed motors, this might be the cheapest that they come.

10t = 1700 rpm/volt (faster than a 35t handwound 540)
7t = 2300 rpm/volt
5t = 2800 rpm/volt


Any questions?

[Mnster]

Run Time?

[SVEN]

Could you post a picture of the puller next to a typical lathe motor? It doesn't look like it will fit in my chassis.:-(

[Offroader5]

Could you post a picture of the puller next to a typical lathe motor? It doesn't look like it will fit in my chassis.:-(

Yeah, it looks like it would cause some fitament issues with anyone running a chassis where the motor extends outside the chassis plate.

I want one of these so bad, but I don't think it will fit in my chassis. I may have to design another chassis just to run this thing :lol:

Could I get an exact length measurement from the mount face to the extreme tail end? "thumbsup"

[JohnRobHolmes]

2.5" long, just like I said in the first post. To be exact, 63.5mm give or take a hair. Here is a comparison shot.

[Destroyer]

How is the startup on these motors? Are they jumpy to start like some of the other Cobalt motors I have run, or does the 7 slot arm help smooth them out?

[JohnRobHolmes]

There is no jump to the start, it goes from zero to one RPM as you see fit. If it were unloaded it might have a bit if a jump- there is a good deal of brush contact and spring pressure to overcome. What cobalt motor are you referring to?

[Destroyer]

Sweet! I am talking about that Global 380 that I have been messing with. It's like the magnets are so strong it has a hard time deciding when to stop holding and start turning.:lol:

That leads me to another question: Can this motor hold a rig at a dead stop on a hill w/o any drag braking/ throttle input?

[JohnRobHolmes]

yeah, those global 380s do start up fast- it is because they are so small and it takes a lot of throttle for them to get a vehicle moving.

Sweet! I am talking about that Global 380 that I have been messing with. It's like the magnets are so strong it has a hard time deciding when to stop holding and start turning.:lol:

That leads me to another question: Can this motor hold a rig at a dead stop on a hill w/o any drag braking/ throttle input?

Depending on geardown, yes the motor can hold a rig with no throttle or drag brake. The armature slots are not skewed, so the motor has a good deal of cogging to it which gives it a natural drag. I haven't gotten a good chance to test it with zero drag and fast gearing yet, so I don't know the threshold for the inherent drag.

[Destroyer]

Good deal, might have to try one out."thumbsup"

[Offroader5]

2.5" long, just like I said in the first post. To be exact, 63.5mm give or take a hair. Here is a comparison shot.

:-P yeah, I know what'cha said in the first post..."around 2.5 inches"...I'm an anal SOB and at the same time have a very tight area to fit the motor, so I just wanted to make sure of what the exact length of around was "thumbsup"

[rockwerks]

JRH this is a cool lookin motor and gonna have to try one out, as soon as I get some cash this week..............."thumbsup"

[brushlessnut]

hey john can i post that vid of your truck at the comp to show how smooth it is?

[tsaun987]

WooHoo!!! Just ordered mine!!!
Im gonna take out my crawlmaster from my ax-10 temporarily and put this in its place. It will be hooked up to my mamba max. I'll post up some video of my mamba/crawlmaster and my mamba/cobalt puller to show the difference.

Thanks JRH"thumbsup"
Tyler S

[Reflection]

I ran a 5 turn in my super at the nats. VERY strong motor. Pushed my 12 pound super around but it did get a bit warm. The 10 turn would have been better. Just seeing what these will do,I agree with John,they are GREAT little motors for a 2.2 build. I'm gonna try to put my 5 turn in my 2.2 Hustler this winter before we start the new season. Got a new tranny idea I'm working on and I think this will work out great.

[octigonwallrus]

so do these have some good wheelspeed to them, or just gobs of torque and slow speeds?

[Kamikaze]

They got gobbs of everything.:shock:

[Reflection]

so do these have some good wheelspeed to them, or just gobs of torque and slow speeds?


Go back to the first post and read please. Agh,I'll just quote it for ya.......



There are three winds available right now, very limited quantity. 10 turn, 7 turn, and 5 turn. I have not been able to determine the KV yet, but the 10 turn acts like a stock motor and the 5 turn acts about like a 15 turn motor. Any of the winds can be crawled well however, as the 7 slot armature and large diameter commutator gives better control than the average motor. Some details from my website about the 10T motor:


I'm running a 5 turn Cobalt in my super on 8 cells at 120:1:shock:.......and it's STILL fast:lol::lol: I run my 3025-8 at 60:1 and 10 cells and it's barely fast enough for my taste:lol::lol::lol:

Make a bit more sence now?"thumbsup" They might be fast but they've got enough sack to crawl as well."thumbsup"

[JohnRobHolmes]

I haven't had enough time to take any vid yet, but they have gobs of torque and wheelspeed too. I have been bogged down with orders and backorders the past few days, averaging about 10 orders a day.

[crawl rookie]

Jonh , can u please awnser my PM's?
You know the revoler&mamba set up?
i just saw that you have only one revolver in stock right now,
Can u set aside that one plus a esc?
Thanks John,
Glad to do business with the electric goeroe;-)"thumbsup"

[BeeRC]

So, Raptor57, it sounds like you REALLY like your 5 turn Cobalt in your 12 pound super. When you say the 10 turn version would have been better in it, do you mean because it would run cooler, stronger, or....?? Was it actually faster on 8 cells than your 3025-8 on 10 cells?

How did you set up your rig for 120:1? (I assume its your Twin Force axled super with the TF tranny.) How else do the two motors stack up against each other? Would you say you actually prefer the Cobalt in your super?

Any idea how run times compare if using the same cells, or have you compared that?

[Dumptruck]

I saw someone asked earlier but i didnt see an answer. How is amp draw / runtime on these? And the open end might be good for my scaler, dirt/mud/sand could flow in but also out easily. And what about replacement brushes?

[tsaun987]

Got it all mounted up in my ax-10. Fits in there like a glove!
Im using a mamba max w/ the cobalt puller, and it acts like a supercharged novak goat system.

I definitely need new gearing with this. Maybe an r2 would be good for it. With the stock ax-10 gearing, it has insane wheelspeed. Plenty of low end torque though

I'll post up some video of the mamba/cobalt tonight

[JohnRobHolmes]

I saw someone asked earlier but i didnt see an answer. How is amp draw / runtime on these? And the open end might be good for my scaler, dirt/mud/sand could flow in but also out easily. And what about replacement brushes?

Runtime depends on your trigger finger. I can get an hour in my 2.2 with a 2100 3 cell lipo. If I am heavy on the throttle I could whittle that down to 20 minutes I am sure.

As for replacement brushes, I am working on that. They are not available at this time.

Got it all mounted up in my ax-10. Fits in there like a glove!
Im using a mamba max w/ the cobalt puller, and it acts like a supercharged novak goat system.

I definitely need new gearing with this. Maybe an r2 would be good for it. With the stock ax-10 gearing, it has insane wheelspeed. Plenty of low end torque though

I'll post up some video of the mamba/cobalt tonight


What voltage are you using, and which turn?

[Reflection]

So, Raptor57, it sounds like you REALLY like your 5 turn Cobalt in your 12 pound super. When you say the 10 turn version would have been better in it, do you mean because it would run cooler, stronger, or....?? Was it actually faster on 8 cells than your 3025-8 on 10 cells?

Yes,I REALLY like the Cobalt motor. Because of the higher turns,just like any brushed motor,the 10 turn should have lower amp draw and higher torque rating. In turn,it should run cooler if the gearing and cell count is left alone. Yes,the 5 turn was a touch faster than my 3025-8.....even with twice the gear:lol: 120:1 on the Cobalt and 60:1 on my Hyperion and the Cobalt was still faster:lol::lol:Even with more cells on the Hyperion. Not much faster but it was faster.

How did you set up your rig for 120:1? (I assume its your Twin Force axled super with the TF tranny.) How else do the two motors stack up against each other? Would you say you actually prefer the Cobalt in your super?

Yes,it's in my super. I got 120:1 through a GD600. They are both a haws but the 3025-8 will overpower the Cobalt easily. The cobalt has the upperhand though with the smooth throttle response and higher wheel speed on lower cell count(less weight). Which do I prefer???????? Hard to say,they are both VERY good motors.


Any idea how run times compare if using the same cells, or have you compared that?

Can't run the 5 turn on 10 cells.......if you want it to last a while:lol: My outrunner will get longer run times. The efficiency of brushless motors will generally be allot better for run times anyway. Gearing,driving style and everything else plays a huge part in it.

[tsaun987]

Runtime depends on your trigger finger. I can get an hour in my 2.2 with a 2100 3 cell lipo. If I am heavy on the throttle I could whittle that down to 20 minutes I am sure.

As for replacement brushes, I am working on that. They are not available at this time.




What voltage are you using, and which turn?
10turn
9.6v (elite 1500's)
Stock ax-10 gearing (14t & 87t)
Maybe the wheelspeed is a little bit faster or just the same as the goat. It's kinda hard to tell but...
This thing is AWESOME JRH!!! The low speed control is amazing with the Cobalt Puller 10t!!!
Once again, excellent job man"thumbsup"
-Tyler

[Thorsteenster]

Are these going to be a regular thing or a limited run?

[JohnRobHolmes]

THIS is a limited run. I am working on finding a factory to produce these for me on a long term basis, there are few brushed motor factories left in the world.

[BeeRC]

Raptor57, are you running a Mamba Maxx in your super with the cobalt motor?

By the way, has anyone heard any news on the to-be-upgraded version of the Mamba Maxx that has been referred to several times on here recently?

[chafee]

CAN YOU CUT THE coms? are they similar to lrp puller motors?

[JohnRobHolmes]

Raptor57, are you running a Mamba Maxx in your super with the cobalt motor?

By the way, has anyone heard any news on the to-be-upgraded version of the Mamba Maxx that has been referred to several times on here recently?

I haven't heard anything on the update yet.

CAN YOU CUT THE coms? are they similar to lrp puller motors?

You can cut the comm, but it is round from the factory. These motors are nowhere near the same as the LRP puller. My motors have more torque and rpm range, they have a totally different design.

[aggressivellc]

Raptor57, are you running a Mamba Maxx in your super with the cobalt motor?

By the way, has anyone heard any news on the to-be-upgraded version of the Mamba Maxx that has been referred to several times on here recently?

Call Castle Creations they will tell you the basics of what you want to know. I havent gotten anything really technical out of them yet but they will give you the dummy version of what will be different.

[braceysdad]

I picked up a 7t from JRH for a rock racer project. I threw it in a bruiser hybred running tlt axles and a pede tranny. With 8 cells and a mamba maxx this motor is the bomb...

I will replace every motor in my scale/trail rigs with one of these!

It is exactly as JRH says, great low speed torque and tons of wheels speed...

[Scattman]

I picked up a 7t from JRH for a rock racer project. I threw it in a bruiser hybred running tlt axles and a pede tranny. With 8 cells and a mamba maxx this motor is the bomb...

I will replace every motor in my scale/trail rigs with one of these!

It is exactly as JRH says, great low speed torque and tons of wheels speed...

Is that the turn you would recommend? I am running a hybrid with a stealth. been running a 35 turn in it but sometimes I wish it had a little more balls. Have you run it on 6 cells and if so how does it compare to a 35 turn?

[braceysdad]

Is that the turn you would recommend? I am running a hybrid with a stealth. been running a 35 turn in it but sometimes I wish it had a little more balls. Have you run it on 6 cells and if so how does it compare to a 35 turn?

I've only ran it on the 8 cell pack of 2/3 A's. I think JRH has been recommending the 10t for most crawler applications. I'm actually gonna use the 7t on a R2 2 speed tranny...

[Thorsteenster]

Save some for the rest of us BD!
I got a 10T for a 6th scale build I'll be starting soon hopefully.

[SpyderMonkee]

JRH, thanks for the Cobalt! Hooked up to a Max and r2, the low speed control was so much nicer than with the hyperion. Another one hit out of the park imo.

[Cloak]

After you told me about these at Nats, I figured I should keep an eye out. Haven't been online much with the house sale/purchase so I figure better late than never.

[SnailMail]

pardon my ignorance, bu i've seen tham somwhere else.... just can't rember where.....

one sec....

here
https://shop.graupner.de/webuerp/servlet/AI?ARTN=6340

groupner ultra motors, thet are DC'd though, so get em while you can "thumbsup" (from JRH - about $200 cheaper :shock:)

there's more here, not just that one.....
https://shop.graupner.de/webuerp/servlet/AA

[JohnRobHolmes]

It is a similar motor, no doubt the graupner motors are a bit higher quality. Too bad they are discod. Brushed motors are falling by the wayside.

[Kranberry]

how much does it weigh compered to a integy 35t motor?

[SnailMail]

It is a similar motor, no doubt the graupner motors are a bit higher quality. Too bad they are discod. Brushed motors are falling by the wayside.

yeah... it's too bad, but good in a way, technology progresses, and we are in a transition phase

and as for the graupner motors, they are awesome, but VERY expensive.

[Reflection]

Even if they were cheaper,I'd still buy from John. Simply because he's the coolest.

[Grizzly4x4]

Even if they were cheaper,I'd still buy from John. Simply because he's the coolest.
Yup yup!! Try to get another company to help you solve problems or answer questions about motors for your crawler. 8)

[SnailMail]

Even if they were cheaper,I'd still buy from John. Simply because he's the coolest.

yep, i would too, and i was not suggesting to buy from someone else... i hope you know that....

[JohnRobHolmes]

Thanks guys :lol:

[Thorsteenster]

You don't get the assurance that its a good set-up or the JRH seal of approval buying some where else!
"thumbsup"

[Grizzly4x4]

Did a little bit of testing with a 10 turn cobalt puller motor this weekend. Let me start by saying this motor could possibly kill the brushless revolution. "thumbsup"

I put it in Tyler's Bumblebee K5 since the extra length of this motor fits no problem in a Reign K2 chassis. Set up was TLT axles, Pede tranny, 14/87 grearing, 6 cell NiMh subC Venom pack. First I ran it with a Rooster Crawler. No problems at all so far. The bottom end punch is awesome and the throttle control is butter smooth.

Here's the big kicker, I threw in my old Super Rooster and guess what. The Cobalt Puller does come with it's own drag brake. :shock: Using an ESC with no drag brake I found that the motor's magnets were so powerful that they would provide drag brake. Now that's awesome. "thumbsup""thumbsup""thumbsup" Break out those old Super Roosters guys.

My only regret is that I can't get it to fit in my GC-1 chassis comp rig. :x I want so bad to run this thing in a comp rig. I'll try to get some video and more thoughts on this motor this week but after only a couple hours I can tell you I love this motor.

[crawl rookie]

John,
Please awnser my pm's i'm trying to contact you for over ea week now;-)

[JohnRobHolmes]

I have had to turn my drag brake down to use the motor on downhill sections :lol: Why wont the motor fit in a CG-1, does it hit the links?



John,
Please awnser my pm's i'm trying to contact you for over ea week now;-)


I will look through, I must have missed yours. Thank you for the heads up.

[Grizzly4x4]

I have had to turn my drag brake down to use the motor on downhill sections :lol: Why wont the motor fit in a CG-1, does it hit the links?
The tranny position puts the motor housing inline with the chassis sideplate and the cutout is not big enough. A lathe motor has maybe 1/4" clearance between the chassis and the endbell. Also there isn't enough chassis material there to remove and make room for the motor.
These shots will explain what I am saying.
Clicky me (http://www.rccrawler.com/forum/showpost.php?p=845518&postcount=18)

[Destroyer]

The tranny position puts the motor housing inline with the chassis sideplate and the cutout is not big enough. A lathe motor has maybe 1/4" clearance between the chassis and the endbell. Also there isn't enough chassis material there to remove and make room for the motor.

May have missed it, but what trans are you running? I was wanting to run an R2D w/ one in Da Bull, but I doubt it will fit.

JRH- You got a PM from me too from sometime last month.:)

[crawl rookie]

with thos cobalt motor you have to use sub-c's or lipos isn't it ?
or doesnt this motor have any influence on the discharge level?:?:

may i ask whay these motors are so expensive, ooh well comp drivers do what is takes to be the best on the rocks is it not!!;-)

[Grizzly4x4]

May have missed it, but what trans are you running? I was wanting to run an R2D w/ one in Da Bull, but I doubt it will fit.
I'm running a pede tranny. I'm gonna figure something out eventually, this motor is too good not to use.

[JohnRobHolmes]

Destroyer, could you send again, I cant find your PM. It has probably been deleted if it was indeed a month ago, old messages last about ten days in my inbox.

Crawl Rookie, the motors are expensive because of the construction. The magnets are powerful, the armature is harder to make. Unfortunatly once the current stock is gone the price will go up even further. These motors were made a few years back and to make them now will be more expensive, mostly because of the increasing cost of magnets and the fact that few factories make brushed motors anymore.

[braceysdad]

I've had mine for a couple of weeks and still LOVE it...

Just ordered another.

Thank you JRH for such great products and even better service...

[Destroyer]

Just re-sent."thumbsup"

Thanks Grizz. So you are looking at maybe 2.75" total trans/motor length (not including the input shaft sticking out the front)?

[JohnRobHolmes]

It is 2.5" from front to back when mounted up. Then there are two wires coming out, but they are flexable.

[Grizzly4x4]

Just re-sent."thumbsup"

Thanks Grizz. So you are looking at maybe 2.75" total trans/motor length (not including the input shaft sticking out the front)?
Not sure of that measurement. I measured from the front edge of the tranny to the end of the puller motor. I've got to remember the number now.

Edit: 1.5" as shown in the pic below.

[EGRESSor]

i have tested some others
Plettenberg 200/ and 290/.. , Promax , Cermark and Mega
but the best is the Astro Pullmaster 05
http://img2.putfile.com/thumb/10/28110075043.jpg (http://www.putfile.com/pic.php?img=6828296)

[JohnRobHolmes]

i have tested some others
Plettenberg 200/ and 290/.. , Promax , Cermark and Mega
but the best is the Astro Pullmaster 05
http://img2.putfile.com/thumb/10/28110075043.jpg (http://www.putfile.com/pic.php?img=6828296)

And Astro wont make them for me, I literally threw money at Bob and he refused. He does know a thing or two about making motors.

[hotwheels000]

Secret is out of the bag now, there are many astroflight motors that will work depending on the application. My super will wheel stand with pullmaster 1 motors and you can not stall it. Wheel speed is nits on 3 cell


Arg,, prices are going to go thru the roof now.

I have seen JRH motors in action and they are very simular and are a excellent motor also,maybe even better since the brush hoods are not external and those tend to getin the way of things.

John Robert ...are you having anyluck finding a supplier to continue reproducing these ?


i have tested some others
Plettenberg 200/ and 290/.. , Promax , Cermark and Mega
but the best is the Astro Pullmaster 05
http://img2.putfile.com/thumb/10/28110075043.jpg (http://www.putfile.com/pic.php?img=6828296)

[Reflection]

John Robert ...are you having anyluck finding a supplier to continue reproducing these ?

I know who's making them:-P:-P

I just ran the 10 turn tonight. I like it ALLOT better than the 5 turn I ran in the Nationals. Mainly cause it's allot happier in my 12 pound super.

I was able to loose the gear reduction and gain a small amount of wheelspeed. The 5 turn worked great but got a little to warm pushing my pig around. The 10 turn pushed it around VERY easy and was running cooler than the 5 turn by a long shot. Sorry,no temp gun...but I can tell by the touch,the 10 turn is ALLOT happier. I ran it HARD for about 20 minutes and still had pleanty of power left. It started POURING the rain so I had to put it up. I played a few minutes on the firewood stack in the shop till I managed to bust the gears in my front diff. STEEL HELICAL GEARS....1:8 SCALE BUGGY STUFF.....SHREDDED:lol: It also twisted one of my 1:8 scale universal shafts nearly a 1/2 turn.:lol:

This babies got the mustard! Still doesn't have the GRUNT power of my 3025-8 but I tell ya,these things are AWESOME little motors. PLEANTY of power for crawling. As much as I tried.....I could NOT stall it out. It would pull itself out of the bind every time.

I was running on 9 cells and I'm happy with it. I'm a sucker for wheelspeed though. I'm gonna swap some diffs around from my other Twin Force axles laying around. I'll try to run a few different packs tommorrow to see what this motors like with 6,7,8......maybe even 10-12 cells:twisted:


I'm not saying the 5 turn is junk,it's a great little motor. For a heavier rig,the 10 turn is the better choice. The 5 turn would be a good choice for a 3-5 pound 2.2 rig. It'd probably have better run times and run cooler than it did in my pig of a super. Personally though,if I was gonna put a Colbalt puller in a 2.2,I'd run the 10 turn.

I'm gonna do some serious running with this motor over the next week or so just to see how it handles different things. As of right now,the results I see so far....this is my motor of choice. I REALLY like this thing.

[yukon635]

The tranny position puts the motor housing inline with the chassis sideplate and the cutout is not big enough. A lathe motor has maybe 1/4" clearance between the chassis and the endbell. Also there isn't enough chassis material there to remove and make room for the motor.
These shots will explain what I am saying.
Clicky me (http://www.rccrawler.com/forum/showpost.php?p=845518&postcount=18)

yeah, in my GC-1 i had to trim the plates some to get my r2d and a lathe motor to barely fit. too bad cause i would love to try one of these motors too. Even when i had an SW3, i couldnt get a pede or r2 to fit with a mag mayhem

[JohnRobHolmes]

I now have replacement brushes for these, and have a replacement armature source as well. For those of you who want one but can't fit it into your chassis, I have something on the way for you too. ;)

[brushlessnut]

:shock: how far out is shorter motor?"thumbsup"

[JohnRobHolmes]

2-3 months depending on how smooth the proto's go.

[brushlessnut]

sweet.the motors will not be losing much power if any getting shorter will they?

[JohnRobHolmes]

A touch, but it won't be much to shake a stick at. Smaller motors always have less power, but these will be a lot more power than a ceramic mag motor.

[Grizzly4x4]

I now have replacement brushes for these, and have a replacement armature source as well.
Great news John!! "thumbsup"

[hotwheels000]

Cant wait to see them"thumbsup"

[redbaron]

For those of you who want one but can't fit it into your chassis, I have something on the way for you too. ;)

Cool! I can't fit the 2 1/2" one in my SW3, so I'll be looking for the smaller version.

[nigels_world]

John right now im running my light 2.2 tuber with with a mamba max, 6 cells nimh, an r2d with the 8 tooth, jordans, and wk axles, and a 27turn motor. i used to run a 55 turn but it was way to slow. The 27 turn is better but i still want more wheel speed. I know more voltage is in my future but am also thinking about one of these. Does a 5 turn on 8 2/3a cells make sense for me?

[JohnRobHolmes]

The 5 turn spins at around 2800 rpm/volt, so it will be faster than most 27t motors. On 8 cells it would really light up the tires and give you all kids of power and throttle control. It is my pick for 2.2 comp use right now.

[bRIBEGuy]

The 5 turn spins at around 2800 rpm/volt, so it will be faster than most 27t motors.

JohnRobHolmes, how do you feel the 5t motor would do outside of a crawling application?

I am looking for a motor to replace the stock silver can motor in a Kyosho Blizzard. I'm hoping for more torque and speed, while still being able to run off a standard 6 cell pack and regular ESC.

Do you think the 5t Cobalt motor would succeed in this application?

Please let me know your thoughts.

[JohnRobHolmes]

I think the 5t would be pretty good on 6 cells, and the 7t as well with some forward timing.

[LIKES2CRAWL]

What's the word on these shorter motors?

[bRIBEGuy]

I think the 5t would be pretty good on 6 cells, and the 7t as well with some forward timing.

Sounds good. Is the timing adjustable on the 5t as well (I'm assuming so)?

[JohnRobHolmes]

What's the word on these shorter motors?

Nothing yet, still in the last parts of the design phase.

Sounds good. Is the timing adjustable on the 5t as well (I'm assuming so)?

Yes it is.

[bRIBEGuy]

Excellent. Thanks for the quick replies.

Now I just need to convince myself that I can justify a $70 motor for a $180 Snowcat.............

:)

[bustedcrawler]

Any idea on the lead time to get the 10T puller back in stock, or should I just run a 7T for now?

[JohnRobHolmes]

You should probably just get the 7t for now. I was hoping to have them in stock within two weeks, but if I do that I won't be able to pay the bills until I sell off some inventory.

[Rckcrwlr]

John,
Your PM's are full...I need to talk to ya...;-)

John

[bRIBEGuy]

ACK!!!

Went to order up a 5t motor today, and they're OUT OF STOCK!!!!!!!!!!!

:( :( :(

I know this is a long shot, but any chance we'll be seeing these in the near future again?

[JohnRobHolmes]

You will be seeing them, but I need to sell more sidewinders to get cash back. Lots of inventory, no cash to buy more right now!

[cyberhog05]

As far as the 5T w/ MM, BEC, and Spektrum on 6 cell elites its a no go. It will run normal for 5 mins but after that.... The amp draw of the motor is to much and it is kicking my receiver into fail safe. Atleast that is what we figured out at Unimogers at the shop day. If im missing something JRH let me know. Im gonna tear my 6 cell packs apart and make an 8 cell to see if this helps. If not I guess its time for lipo.

[bRIBEGuy]

As far as the 5T w/ MM, BEC, and Spektrum on 6 cell elites its a no go. It will run normal for 5 mins but after that.... The amp draw of the motor is to much and it is kicking my receiver into fail safe.

Now that seems odd...........and fairly disheartening since I was planning on running a 5T off a 6 cell pack (GP3300 or Elite 4500).


You will be seeing them, but I need to sell more sidewinders to get cash back. Lots of inventory, no cash to buy more right now!

Hmmmmm...........maybe I should just drop a 4600KV Sidewinder into my Kyosho Blizzard! That should be good for a few giggles.......LOL. Actually, I would consider it, except I'm almost positive the ESC wouldn't fit under the body shell.

[cyberhog05]

Im using a split 6 cell elite1500's. You should be fine I would assume

[bRIBEGuy]

Im using a split 6 cell elite1500's. You should be fine I would assume

Ahhh, that makes more sense...........

[JohnRobHolmes]

Cyberhog,

I replied to your email too. My guess is that the cells may be bad, but more voltage won't hurt any. If they are new, then the motor is in fact too much for the cells.

[cyberhog05]

Are you talking about the email from slobin3d? I havnt heard from him yet. It must be that the cells are much to small. I have 2 brand new packs and they both do the same thing. I am only getting 15 min run times also. Light on the throttle.

[cyberhog05]

so do you think I should bother trying 8 cells or just get into lipo? I put a axiom v10 in and it sucks compared to the cobalt. I knew it wouldnt be near as good but my god! Its like going from a geo 4cyl to a blowin doge charger! I cant deal with a loss like that!

Anybody who is thinking about getting one of the cobalts....Dont hesitate. you see one for sale BUY IT!

[JohnRobHolmes]

8 cells will give a better voltage, but you will still be beating on the cells pretty hard. A lipo would be good, you will hold a better average voltage. How much space do you have to work with?

[cyberhog05]

pretty much just have my front axle to work with

[JohnRobHolmes]

See if this is too big:

http://holmeshobbies.com/product.php?productid=118&cat=10&page=1

I have some better cells on the way too. Lower mah, same size, better burst.

[cyberhog05]

that would be pushing it! I am going to have to make a new servo bracket and get my servo moved over to accomidate a lipo. Ill make one tonight and see what exact room I will have. I think for the sake of my mental stability I might as well go the lipo route. I cant find a way to get around it. I have to run the cobalt now that I have seen it run. And it wasnt to its full potential. Thats the great part. Thanks Mr. Holmes

[JohnRobHolmes]

You could also try putting two of your packs in parallel to see if it helps, just as a test.

[cyberhog05]

Ahhh make it 12 cell! I am not by any means good with electronics. running it parallel do I just put the two red together and the two blacks together. Basically connect the leads?

[JohnRobHolmes]

Yep, blacks with blacks, red with red. It will be 6 cells voltage, but twice the amperage available. Runtime may not be double since the motor may take more amperage.

[cyberhog05]

I will give it a shot! thanks again"thumbsup"

[cyberhog05]

Will it harm anything because this set up running parallel is sweet. Can I leave it?

[JohnRobHolmes]

Will it harm anything because this set up running parallel is sweet. Can I leave it?

Wont hurt a thing.

[bustedcrawler]

John, I just got my 7T puller installed in my TXT with a GD600 running 85:1 reduction and a 6 cell pack. WOW :shocked: this motor is nice! Can't wait to see it on 8 or 10 cells when I get the new packs built. I have a 10T preordered in case the 7T isn't happy pushing around a 12-15lb truck.

Thanks again for the awesome motors!!

[JohnRobHolmes]

That should be enough reduction to keep it pretty happy. Just make sure you use stout cells to keep up with the amp draw requirements. Otherwise the packs will wear fast and the performance could suffer.

[bustedcrawler]

That should be enough reduction to keep it pretty happy. Just make sure you use stout cells to keep up with the amp draw requirements. Otherwise the packs will wear fast and the performance could suffer.

Right now I am running Intellect 4200 maH sub-c batteries right now.

[JohnRobHolmes]

Just put a few up on the site of the 5, 7, and 10t versions. The 10t is indeed faster than a 35t handwound 540, just did some testing to confirm this.

Basically even the 10t is faster and more powerful than any other crawling motor!

[TxCruzr]

did i already miss out again on the 10t pullers? site shows them out of stock :-(

[JohnRobHolmes]

Yes, the 10t version is gone until the next production run. The 7t will be available for a bit longer.

[TxCruzr]

do you have an ETA for the 10t's? I think a 7t might be too much speed after watching that video for the 10t on your site, haha i might kill myself if it goes any faster :lol:

[JohnRobHolmes]

You could always just use a lower voltage, like 6 cells nimh or 2 cell lipo. Heck, even 4 or 5 cells would work. It could be a year or more before the next production run, and when that happens the prices will go up. The inventory I am selling is actually a few years old so the cost of manufacturing was lower and the $$ was stronger.

[TxCruzr]

Just reread the thread and saw that these were limited and you were trying to bring them back, that's pretty cool.
The 7t's also show out of stock but if you have one I'd like to relieve you of it's burden, and a 6 cell 1500mah saddle pack. Was going to send you a pm but I think it's broke ;-)

[rdtshaw]

Are these colbalt motors the ones that have that distinct whining sound? Not complaining about the sound, just wondering. :) If not which one is that? I saw a few rigs at the last comp with that noisy motor, but they had great low speed and nice wheel speed.

Cheers,

Rob

[Offroader5]

Just installed a 7T into my WK Widow. This thing kicks _______ <---enter any expletive :lol:
http://smg.photobucket.com/albums/v126/offroader5/RC%20Related%20Stuff/th__MG_4218.jpg (http://img.photobucket.com/albums/v126/offroader5/RC%20Related%20Stuff/_MG_4218.jpg?t=1206828190)

And just in case you're still doubting or don't believe what has already been said about these motors, I'll do the math for you....

6 pound 2.2 rig + HH Cobalt Puller 7T + Delrin 48p spur gear mated with steel pinion gear + 9 cell Elite pack + Mamba Max + grippy Losi Claws + heavy throttle finger = weak link goes bye bye
http://smg.photobucket.com/albums/v126/offroader5/RC%20Related%20Stuff/th__MG_4219.jpg (http://img.photobucket.com/albums/v126/offroader5/RC%20Related%20Stuff/_MG_4219.jpg?t=1206828775)

I have never stripped a spur gear in any electric car I have owned, including some brushless one's...so this definitely surprised me. Time to switch back to 32 pitch gears and might even go hardened now. "thumbsup"

[rockwood330]

so no more pullers for a while hu ?

[JohnRobHolmes]

I will have some more 7t's coming in within a few weeks.

Offroader- thats some spur stripping power ! :D

[mann0mann]

Can someone help me out with a reccomendation?

I have a new 2.2 AX-10 build. I wasn't sure what I had in store and a few weeks ago I ordered a Cobalt 10T just in case (glad I did...)

In any case, the more I've gone along with this build...the more I'm questioning whether using this with what I have in store makes sense.

AX-10 tranny (stock 14/87)
AX-10 Axles
Rooster Crawler Edition ESC
2 Cell Thunder Power 1320 Lipo (7.4v)

The battery will give up 17 amps constant and 27 amps burst.

I've got no experience with Cobalts. So I don't know what the current draw is.

So couple questions -

1.) Is this motor too much for this battery?

2.) Approx. runtime?

3.) Should I gear down?

4.) I honestly would prefer to have runtime and smooth throttle response more than anything else. I am not competing at any level, this is for fun right now.

Would I be better off with a 35T/45T traditional brushed motor for this application?

Thanks

-Mike

[jackal 69]

mike, get a goat system, smooth and great run times, my colbolts are battery hungry but i love em

[holycaveman]

Can someone help me out with a reccomendation?

I have a new 2.2 AX-10 build. I wasn't sure what I had in store and a few weeks ago I ordered a Cobalt 10T just in case (glad I did...)

In any case, the more I've gone along with this build...the more I'm questioning whether using this with what I have in store makes sense.

AX-10 tranny (stock 14/87)
AX-10 Axles
Rooster Crawler Edition ESC
2 Cell Thunder Power 1320 Lipo (7.4v)

The battery will give up 17 amps constant and 27 amps burst.

I've got no experience with Cobalts. So I don't know what the current draw is.

So couple questions -

1.) Is this motor too much for this battery?

2.) Approx. runtime?

3.) Should I gear down?

4.) I honestly would prefer to have runtime and smooth throttle response more than anything else. I am not competing at any level, this is for fun right now.

Would I be better off with a 35T/45T traditional brushed motor for this application?

Thanks

-Mike

I am runnning a 5t And the 1500 elites don't cut it. Very short run times. I am running sub C's now. MAN what a difference in power!! I believe the cobalts can pull some serious amps. It ran very strong on the 1500 elites, but there is no comparason to the sub c batteries. A 5t on 6 sub c's is too much really. There is quite a difference between the 10 t and 5 t also. The 5t packs alot more power per volt. The 10t is smoother at a crawl. So we will be going to 8 cells with 9tooth pinions. that should do the trick. Way too much wheel speed anyways. With 6 sub C's over the axles, and 6 in tires 3/4 full of air softs, it still pulls the wheels off the ground by nailing it. Now thats something"thumbsup"

[TK421]

Does anyone happen to know if this will fit in a DMG DCV Pro with an AX10 tranny. This looks like a wicked awesome motor. I hear it is dead smooth too.

Lou

[CONTRACTED2KILL]

I REALLY NEED A COBALT PULLER MOTOR - DMIT!!!! i have a slow a@@ 55 tooth novak motor in my blackjack that is fully loded except the engine !!!! what am i suppose to do????? i do not want any other motor other then a cobalt !!!! will u please tell me when they are in stock i have a paypal witing for one , (or two ) if you have them

[JohnRobHolmes]

Mann0mann- that battery isn't quite enough. For the 10t I would say you need at least a 1600 15C pack.

TK- I can't tell you if it will fit. How much room is around a normal 540 motor in the rig?

Contracted- I have 7t Pullers available for presale on the site again.

[JohnRobHolmes]

http://holmeshobbies.com/skin1/images/Guido.jpg

I have a new batch of 7t Cobalt Pullers, 4 in stock and 40 going to the machinist on monday.

These can be shoehorned into an sw3 with an r2 tranny, but they are longer motors than a standard 540. The torque is much higher than any other brushed motor that works in a crawler. More wheelspeed, more torque, more power in general. With a 7 slot armature you also get much better slow speed control as compared to normal brushed motors. I run these in every one of my rigs now, with exception to a few scale rigs and my really fast bashers. Yes, they are in fact powerful enough to make me leave outrunner motors for a while. My avatar is the armature.

Get your foot in the door while you can, these motors get snatched up quick

http://holmeshobbies.com/product.php?productid=132&cat=0&page=1

Badgers kick ass vid: http://ca.youtube.com/watch?v=fJS4c36tcjs

<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/fJS4c36tcjs&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/fJS4c36tcjs&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

[Thorsteenster]

Good God, that is sick, great vid!

[JohnRobHolmes]

...

[TxCruzr]

Not that I need one but I had to get one :-P

[cartronicshn]

Done"thumbsup"

[4u2nv]

Do you have something comparable to this but brushless?

[JohnRobHolmes]

Do you have something comparable to this but brushless?

Not really. The pullers have torque, speed, and low speed driveability. The closest brushless would be a novak goat system but they don't have the drag or torque. A fast outrunner would have the torque but not the low speed resolution.

[e-hills4x4]

got one too for my prerunner/crawler

[cartronicshn]

Not really. The pullers have torque, speed, and low speed driveability. The closest brushless would be a novak goat system but they don't have the drag or torque. A fast outrunner would have the torque but not the low speed resolution.

Thanks guys! 29 left.
Are you serious, these have more torque than my goat systems, if so:shock::)"thumbsup"

[JohnRobHolmes]

Yes, the stator is much larger than the magnet on the Goat. It is also longer, and has more commutation cycles per revolution. All adds up to more torque.

[dezrik]

Would a 7T with 21T/87T still have enough torque for crawling?

[Just Zach]

Just picked up 2, thanks JRH"thumbsup"

[JohnRobHolmes]

Would a 7T with 21T/87T still have enough torque for crawling?

Yep. You could gear it to the moon and have enough torque if your batteries would deliver the amps.

[Thorsteenster]

Sorry to get off topic, but what are the rpm per volt for the 10t and max volts?

[JohnRobHolmes]

I measured the 10t at 1800, max voltage 4s lipo.

The 7t is listed at 1800 by the manufacturer, but I think that is loaded. It actually spins closer to 2300 by my last measurements.

[dezrik]

So what kind of battery do you recommend? 20C 11.1v LiPO?

[JohnRobHolmes]

A 15C 2100 seems to do the trick on the 7t. You could use a smaller battery with 20C discharge.

[Mac10]

paypal sent.

thanks JRH!

anychance I will get one of those bad a$$ HH stickers with it?

[JohnRobHolmes]

I need to get more stickers made. Already given out about 1000 of em, and I have run out.

[rob_b]

Just placed my order...

Thanks JRH

[BigD74]

I am trying to get shipping costs to Canada.
I sent an email but haven't heard back yet.
When I tried to order from your site it said to email you? Did you get my emails?

[kwkride]

A 15C 2100 seems to do the trick on the 7t. . .

What if we're still using 7.2v NiMH packs? Will they supply enough power to run one of these motors, or do we need to make the jump to LiPos first?

Thanks,

[cartronicshn]

A 15C 2100 seems to do the trick on the 7t. You could use a smaller battery with 20C discharge.
Hi JRH, on this note i have a sidewinder i am going to use with this motor, what battery that you have in stock would you recomend? also a balancer for my hyperion chargers? lmk so you can ship all at once.

[Thorsteenster]

How do the Cobalts play with The Sidewinder?
I'm thinking I might try something else in a comp rig I'm building rather than the Goat system I was going to use.
Have any kind of combo price?

[Prophecy]

So whats gonna be the specs difference between the Cobalt Puller 7T and your TorqueMaster M10? And when will we be expecting the TorqueMaster available for sale?

[JohnRobHolmes]

So whats gonna be the specs difference between the Cobalt Puller 7T and your TorqueMaster M10? And when will we be expecting the TorqueMaster available for sale?

The m10 is still in proto phase, I have a few designs that are kicking around. It would be less power than the Cobalt Puller.

How do the Cobalts play with The Sidewinder?
I'm thinking I might try something else in a comp rig I'm building rather than the Goat system I was going to use.
Have any kind of combo price?
Cobalt and sidewinder are just fine together. No combos right now.

Hi JRH, on this note i have a sidewinder i am going to use with this motor, what battery that you have in stock would you recomend? also a balancer for my hyperion chargers? lmk so you can ship all at once.

I have a shipment coming in of lipo, I will need to get some 7t testing. I don't remember if I had 1800's or 1650's sent in, and I haven't been able to test 3 cell 1650 15C packs with it yet. On a 2 cell a 1650 15C pack will cut it if the gearing is low (13/87 on an axial tranny).

What if we're still using 7.2v NiMH packs? Will they supply enough power to run one of these motors, or do we need to make the jump to LiPos first?

Thanks,

What pack? What cells?

I am trying to get shipping costs to Canada.
I sent an email but haven't heard back yet.
When I tried to order from your site it said to email you? Did you get my emails?

I have probably received it, but not replied yet. I will be able to respond to emails tomorrow after class, and before I ship.

[ffactory666]

Hi John.

I also just emailed you to get a price for postage to Australia , am ready to order asap.

Tim

[Thorsteenster]

How do you think the C7T w/ Sidewinder would be on a 2s A123 pack?

[ffactory666]

Could you also find out what pinion Badger was running in the vid with the R2 tranny and 3S lipo.
I'll be using this in a rock racer as well and his wheel speed looked spot on .

[JohnRobHolmes]

Hi John.

I also just emailed you to get a price for postage to Australia , am ready to order asap.

Tim

Shipping is $15 for non insured, and $25 for insured. If I haven't responded yet, don't worry as I have taken some motors out of inventory for international orders.

How do you think the C7T w/ Sidewinder would be on a 2s A123 pack?

It would work pretty dang well IMO.


Could you also find out what pinion Badger was running in the vid with the R2 tranny and 3S lipo.
I'll be using this in a rock racer as well and his wheel speed looked spot on .


He probably uses a 13t, but that is a question for him. You could try asking him.

[ffactory666]

Thanks John , payment sent from your OZ customer.

Just was on our OZ crawling forum and saw that you post there as well , great stuff.

[BigD74]

Can't seem to send payment through your site says to do it by email could you send me an invoice for a 7T puller.

I have sent you email before.

[cspyy]

got a 10t in my comp rig and TWO more 7t's on order :twisted:

[rdtshaw]

Alrighty, I'm in. I 'm gonna move my 5T to my Rockracer and use the 7T in the slingshot...

Cheers,

Rob

[ASSASSINO]

Holmes: Need s/h fees to Canada. Please reply ASAP. Thanks.

[cartronicshn]

This come in yet? if so send me the invoice for the other stuff i asked please.
Thanks

[cspyy]

did the machinist get the job done?

[JohnRobHolmes]

Nothing today. Last Friday they said it would be Wednesday at the latest- hopefully they are right.

[ASSASSINO]

What does one have to do to get a shipping estimate over here??? Sheshhhh

[JohnRobHolmes]

Most countries are $15 for basic priority. If you have sent an email I haven't replied to all yet. If you posted up I must have missed it.

[cspyy]

sweet 8)

[rambuller84]

So, I could TECHNICALLY have my MM/7T combo by the end of next week? :D:D:D:D:D:D:D:D "thumbsup"

[BigD74]

Just wondering if you got my order and if so any idea on shipping time frame?

[JohnRobHolmes]

Just wondering if you got my order and if so any idea on shipping time frame?

Your gonna have to give a bit more info, I have no clue who you are. :lol:

No call from the machinist today, but I hope to have them shipping by the weekend.

[BigD74]

My name is D. Svensson
It is an order for 2 7T pullers and 2 MM set for 7.2v packs

[JohnRobHolmes]

I am not seeing an order through my site. If you are waiting on an email return just revisit the site and order up with these instructions International order (http://holmeshobbies.com/error_message.php?error_no_shipping)

I am out of mamba max controllers at the moment.

[BigD74]

I ordered through email, I am international.
Sent you another email with the paypal transaction number.

[MrBadExample]

John,

Thanks for taking the time to give me a call and help me answer some of my questions yesterday. I think I will go with the 7T in my slingshot thats on the way. PP sent.

Thanks,
Brian

[halfcab]

ordered"thumbsup", only 2 left:shock:

[BigRocks]

----JRH----


I've got an 15C Eflite 2100mah 3S Lipo, sounds like the one you said.
What kind of runtime could you expect from this pack with the 7t puller motor?
Estimate time for crawling around, and estimate time for hauling ass at WOT if possible.

I love the run time of a 55t, but damnit, I need some serious power and wheelspeed.

[JohnRobHolmes]

----JRH----


I've got an 15C Eflite 2100mah 3S Lipo, sounds like the one you said.
What kind of runtime could you expect from this pack with the 7t puller motor?
Estimate time for crawling around, and estimate time for hauling ass at WOT if possible.

I love the run time of a 55t, but damnit, I need some serious power and wheelspeed.

For crawling around you could get 45 minutes. Hauling ass 15-20 min.







I called the machinist, evidently the floor worker broke his toe early this week and the shop has been working pretty slow. They are going to try and get it done by the end of the day. Sorry on the delay guys, but it isn't in my control at the moment.

[TMWTP]

I just ordered one of these motors online last week. Any chance of getting an update? Sorry if it is posted somewhere in the thread, no time to sift through the whole thing.

tia.
Jon Brule
brulej@msn.com

[JohnRobHolmes]

The post right above yours. The floor machinist broke something in his foot that caused the delay from the initial date, he can't work because of insurance or something so the owner is having to do the work. I am pushing them to get it done by monday, there is not much I can do but wait at the moment.

[rdtshaw]

The post right above yours. The floor machinist broke something in his foot that caused the delay from the initial date, he can't work because of insurance or something so the owner is having to do the work. I am pushing them to get it done by monday, there is not much I can do but wait at the moment.


FLOG the floor machinst!!! Make it happen John!! Leave your soul at the door yo!! "thumbsup" heh-heh.

No sweat here man, thanks for the update though. Have a good weekend!

Rob

[halfcab]

I only ordered yesterday so no worries mate I can wait, that will make it a 5t and a 7t in the inventory"thumbsup"

[Prophecy]

Hey John, i ordered mine back on April 9th and was wondering if it was shipped out yet? Invoice #1610 i believe. Thanks!

[JohnRobHolmes]

Yours has not, it is part of the same preorder batch that is at the machinist.

[rambuller84]

It's ok, my WK tranny started clicking yesterday.. it'll give my new gears time to get here. :D

[C Pook]

Are there any available to order? Tried ordering online and nowhere to click for preorder? Whens the next batch going to be available?

[BigD74]

I sent you an email yesterday. Just wondering if you got it?

I will re ask one of the questions here just in case.

I am curious as to why a BEC would get programmed for 6v if I will be using a 7.2v stick pack(sub c)?

I am not doubting you just curious.

[JohnRobHolmes]

Are there any available to order? Tried ordering online and nowhere to click for preorder? Whens the next batch going to be available?

I sold all of the motors in the last batch. When I get this round shipped out I will bring in another batch, should be about 2 weeks.

I sent you an email yesterday. Just wondering if you got it?

I will re ask one of the questions here just in case.

I am curious as to why a BEC would get programmed for 6v if I will be using a 7.2v stick pack(sub c)?

I am not doubting you just curious.

The BEC is programmed for the output, the CC BEC comes set to 5.1v stock and 6v is a little livelier for crawling. I got the email but haven't had a chance to respond. I am not at home right now so I can't get to my email.

[JohnRobHolmes]

Just got the motors back yesterday. I will be spending the next few evenings inspecting, packaging, and shipping all backorders. Thanks guys! You will love them.

[BigD74]

Thanks for the quick response.

[rambuller84]

Just got the motors back yesterday. I will be spending the next few evenings inspecting, packaging, and shipping all backorders. Thanks guys! You will love them.

SWEEEEET! Doing the happy dance...:lol:

[rckcrawler]

Very nice video, I wish that would fit in a copperhead!

[bigflex]

ok I have a question. I want to run this motor in my rock racer I am building but what esc will I need to get to run it. I only run 7.2v nimh packs. I use 1500 2/3a and also 3300 sc packs. I really don't wanna go lipo and basiclly just need a speedo that will handle this motor with the packs I run. What would be the minimum esc you would recommend?

[JohnRobHolmes]

A speedo that would handle a 19t motor would be plenty. For the real load in a rockracer, you can just use your final speed. The ESC will see the same amount of work with a 19t geared to 20mph as a 10t geared to 20mph if you are using the same voltage.

For a nice all around bet the Sidewinder is great. For a smaller ESC the Tekin FX-R is awesome.

[bigflex]

A speedo that would handle a 19t motor would be plenty. For the real load in a rockracer, you can just use your final speed. The ESC will see the same amount of work with a 19t geared to 20mph as a 10t geared to 20mph if you are using the same voltage.

For a nice all around bet the Sidewinder is great. For a smaller ESC the Tekin FX-R is awesome.

sweet thats what I needed to know! "thumbsup" Thanks for the quick reply. If I order one about how long could I expect the lead time to be?

I just emailed you! I tried to pay for one and it won't let me. what do I need to do to be sure I get one out of the new batch?

[quattros]

John have you tested this motor with the Sidewinder Micro. It looks like it will take it.

[bigflex]

John have you tested this motor with the Sidewinder Micro. It looks like it will take it.

or maybe a mamba 25?

[cartronicshn]

Just got the motors back yesterday. I will be spending the next few evenings inspecting, packaging, and shipping all backorders. Thanks guys! You will love them.
Still waiting on the invoice for the other stuff so it can ship with this motor.

[cartronicshn]

Got it and done"thumbsup"

[JohnRobHolmes]

You should have an email cartronics

[JohnRobHolmes]

sweet thats what I needed to know! "thumbsup" Thanks for the quick reply. If I order one about how long could I expect the lead time to be?

I just emailed you! I tried to pay for one and it won't let me. what do I need to do to be sure I get one out of the new batch?

There is a way to get through my shopping cart if you put a US addy in the shipping field. I may have sent you an email about it already.

John have you tested this motor with the Sidewinder Micro. It looks like it will take it.

I doubt it, but I haven' tried.

or maybe a mamba 25?
No way.

[BigD74]

Any idea on time frame for shipping my order, not to rush you or anything.
(two 7T pullers, 2 MM, 3 CC bec's)

[cartronicshn]

You should have an email cartronics
Read post above :lol:;-)

[JohnRobHolmes]

Any idea on time frame for shipping my order, not to rush you or anything.
(two 7T pullers, 2 MM, 3 CC bec's)

If I remember right you sent an email concerning this and have not added the MM and BEC to the order right? I just counted the backorder MM against stock and I will have enough to fill the order. I will send an email to you about the payment, more than likely later this evening.



I will be hiring some help tonight (if she can come over) so that I can process as many orders as possible. It seems that most of my time has been spent on email and phone calls today instead of packaging, although the help I hired in this morning helped prep the motors. Now all I have to do is go through and time them all and package.

[BigD74]

The original order included payment for both the 7T's and 2 MM, and I sent the payment for 3 BEC's just the other day.

[e-hills4x4]

what is the minimum number of continuous amps needed to keep a 7t happy? im trying to figure out batteries.

[rambuller84]

Any idea on time frame for shipping my order, not to rush you or anything.
(two 7T pullers, 2 MM, 3 CC bec's)

Read post above :lol:;-)

I didn't get an email either, so I was about to ask the same thing. I only had a 7T and a MM. But I didn't know where I was in the "line".:lol:

[BigD74]

So any idea on time frame yet? Its killing me waiting to get this thing running.

[cartronicshn]

Hi JRH, just wanted to know if my order shipped out, i didn't get an e-mail, thanks.

[JohnRobHolmes]

what is the minimum number of continuous amps needed to keep a 7t happy? im trying to figure out batteries.

I would recommend a 1500 2 cell 15C minimum, and 2100 3 cell 15C min. (assuming lipo)

I didn't get an email either, so I was about to ask the same thing. I only had a 7T and a MM. But I didn't know where I was in the "line".:lol:

You should be coming up tomorrow. I have hired some help for 5 hours to get the rest out.

So any idea on time frame yet? Its killing me waiting to get this thing running.

You should be covered tomorrow as well.

Hi JRH, just wanted to know if my order shipped out, i didn't get an e-mail, thanks.

Got shipped out in today's mail. I missed the Saturday cutoff.



If all goes well every backorder should be taken care of by tomorrow evening. School is just taking a lot more of my time that I had planned for right now, it is like I have two full time jobs :lol:

[cartronicshn]

Got shipped out in today's mail. I missed the Saturday cutoff.



If all goes well every backorder should be taken care of by tomorrow evening. School is just taking a lot more of my time that I had planned for right now, it is like I have two full time jobs :lol:
"thumbsup"

[Mortimer Snerd]

Kicking around preordering a 7t, but am wondering if you have any plans to do a 10t run? The wheelspeed in the 7t looks awesome, but I have a hard time imagining that I'll need all that in a crawler. I'd rather preserve the run time. Would I see much difference? As always, thanks for taking the time to answer our zillions of questions. BTW, got my lipo in the mail today, and it looks like it'll suit my needs great. Thanks!

[JohnRobHolmes]

I am getting quotes from the factory for some 10t armatures, just waiting to hear back. If you don't want so much wheelspeed, just use lower voltage or gear down if possible. I can guarantee that you will find a use for the wheelspeed when you have it though.

[Mortimer Snerd]

I'm sure. :lol: I don't really want to buy new batteries, as I've got a fair amount of $$$ invested, and I really like the speed. Can't gear down much lower. I'm running Maxx driveshafts. I might try to shave them down a little, but I'm concerned about weakening them. How much faster is the 7t?

[JohnRobHolmes]

It is about 2300kv I think, maybe 2200 unloaded. It should be on my website. A bit more than twice the speed of a 55t.

[Mortimer Snerd]

Sorry, I seem to have my noob brain on. If I remember correctly the 10t is 1800kv? It'd be a little slower than the 7t, a little better run time, and still about 10,000x times more parts breaking torque than a 55t?

[JohnRobHolmes]

Yep, correct on all accounts.

[Mortimer Snerd]

Thanks. I think I'll hold out for your next run of 10t pullers. I don't want to give up too much run time....Of course, then I'll be thinking "gee, if only it were a little faster" :roll: Besides, I'm really curious to see what your new 10t will look like. Thanks for taking the time to answer my questions. Again.

[JohnRobHolmes]

Get ready for a wait. It could be months before I can get the factory to make armatures, and then you will have to buy a can too. The redesign is taking even longer, and so far multiple designs have fallen through for factory or production reasons.

[Mortimer Snerd]

I'm assuming you're talking about a long wait for the current 10t cobalts. Any alternate suggestions, given what I'm looking for?

[JohnRobHolmes]

You could get a 25t 540 Handwound. It would load down a bit more than the Cobalt Puller so it wouldn't spin quite as fast under load. I could also get a 30t wound up if that was too fast for you.

http://holmeshobbies.com/product.php?productid=199&cat=17&page=1

[Mortimer Snerd]

Cool, I'll give it some thought. I've been eyeballing those. Thanks!

[bigflex]

so is the time frame on the 7t pullers still about 2 weeks out for the next batch?

[JohnRobHolmes]

so is the time frame on the 7t pullers still about 2 weeks out for the next batch?

Best guess, yes. I will put more up for sale here in the next few days since the motors are on the way already.

[toytech93]

hey JRH, I was curious if a 10T puller could be ran on a Novak crawler ESC ??? The rooster crawler has a 27T limit. If it can't, Whats another ESC that has a drag brake at neutral ??

[JohnRobHolmes]

It would work fine on the Novak RC.

[Prophecy]

Hey John, thanks for the email letting me know my motor was on its way! I cant wait, ive been waiting to finish my super and once the power plant is here its crawlin time!!

[JohnRobHolmes]

All have been shipped, including internationals. Thanks for being so patient guys! Another round of motors is on the way.

[toytech93]

Well, I'm having a hard time deciding what to do with my ax10. I run a rooster crawler esc with a integy 55T on a 7 cell nimh. I want both more torque and wheel speed. Is it possible ??? I wanted a 7T puller but I don't think the crawler esc can handle it . I thought about 3s lipo with the 55T ,but esc can't handle that either. Should I change ESC and ran 3s lipo with 55T ? OR I thought about trying a handwound 45T with 2s lipo on the rooster crawler esc ??? What would my Best option be ? Funds are somewhat limited..... Finding something to fit my budget and my needs is proving to tougher than I thought .... Please HELP !

[JohnRobHolmes]

The Rooster crawler ESC would do fine with a puller.

I am a big fan of 3 and 4s lipo, but you could run a 35t to 20t handwound on 2s lipo to get your speed up. Plenty of options really, and none of them are bad.

[ffactory666]

Got my Paypal shipping confirmation , thanks John.

[bigflex]

Best guess, yes. I will put more up for sale here in the next few days since the motors are on the way already.


thank you sir!"thumbsup" I can't wait to get one of these.:mrgreen:

[toytech93]

[quote=JohnRobHolmes;1176860]The Rooster crawler ESC would do fine with a puller.

Well, thats Great. How do I preorder a 7T ? Your website won't allow it . Just let me know, paypal can be sent ASAP..... manoli427@yahoo.com

I can't wait to start braking drive shaft. LOL

[JohnRobHolmes]

You will have to wait until they are on the site toytech, I will probably add them on friday.

[Speed Demon]

John,

Sorry, I've read the entire thread and I am confused because my mind keep saying "get it! get it! get!".

So, may I know if 10T is already out or in pre-order? If pre-order, how long?

How about 7T? Also on pre-orders?

I am international and I have MM and 3S 20C Li-po. Safe??:lol:

[bigflex]

John,

Sorry, I've read the entire thread and I am confused because my mind keep saying "get it! get it! get!".

So, may I know if 10T is already out or in pre-order? If pre-order, how long?

How about 7T? Also on pre-orders?

I am international and I have MM and 3S 20C Li-po. Safe??:lol:

7t pullers are about 2 weeks out. The 10t pullers are in the works but its only for the armatures, no time on them yet!"thumbsup"

[Oze30]

heya,

I don;t suppose you have a 4m 48dp pinion do you?

[JohnRobHolmes]

I don't have any 4mm pinions.

[BILLYGOAT]

Did I Miss Them Or Does You Site Need Update.

[JohnRobHolmes]

Just put 35 on the site, should be ready to go in two weeks.

[BILLYGOAT]

Got In On One Thanks. What Should I Order To Control It . Mm Or Sidewinder Or Fxr? Thanks

[TxCruzr]

I got my 7t in today and let me just say....big mistake :lol: I love it :shock:
I'm going to have to go lipo as I am having to ziptie my big 6 cell pack on it right now but it runs great. TONS of wheel speed and great response.
Well worth it John, thanks "thumbsup"

Oh yeah, popping wheelies and doing burnouts around the apartment makes your roommates think you're on crack:-D

[bigflex]

got it paid for! I can't wait to get this in my rock racer. Thanks John."thumbsup"

I also ordered a hand wound 35t for the comp rig.

[toytech93]

Hey JRH , I just preorder my puller. I can't wait to test it out ! I'm sure its going to be just as great as everyone says it is. Whats a good gearing for a ax10 ? Stock gearing is 14/87

[TxCruzr]

Hey JRH , I just preorder my puller. I can't wait to test it out ! I'm sure its going to be just as great as everyone says it is. Whats a good gearing for a ax10 ? Stock gearing is 14/87

I'm running the same thing but using a 12t pinion that was laying around. It's just right. 14 should work great for you. Going to also depend on how many cells you are running. Tested mine on 6cell sub-c's

[volumeone]

Just received mine in the mail today..... Ye Ha

[rambuller84]

I'm going to have to go lipo as I am having to ziptie my big 6 cell pack on it right now but it runs great. TONS of wheel speed and great response.
Well worth it John, thanks "thumbsup"

Oh yeah, popping wheelies and doing burnouts around the apartment makes your roommates think you're on crack:-D

X2. I slapped 12 cells in my scaler and holy shit.

[Tanis]

X2. I slapped 12 cells in my scaler and holy shit.
You will definitely want to keep an eye on the heat with that many cells, JRH recomends only up to 8cells for a reason ;-)

[JohnRobHolmes]

And that reason is so that people don't have to watch the heat :lol:

[Tanis]

And that reason is so that people don't have to watch the heat :lol:
:lol::lol:"thumbsup"

[rambuller84]

It's running 10:70 pinion/spur so it should be ok. The motor was warm, but definately not hot. The MM was room temp. Thanks though. Some wouldn't think about that.

[dr.chop]

My friend and I were up late last night setting up his rig and he got it with a 7t puller. I was curious what all the fuss was about, until we got his MM programmed and put that thing on the floor!! DAMN! Now I have to get one. That thing is a monster...It seemed real torquey at first which was cool, but then I guess he really pulled the trigger on it! Damn that rig practically jumped off the floor. He has it on a 3s lipo rated at 1350 I think..Now I know what the fuss is about, and JRH, I will be getting one ordered up soon!

[cartronicshn]

Well i received mine with my balancer, adapter and lipo + some cool JRH stickers"thumbsup", i tested my lipo pack 3s( first time with lipo, kinda scared at first:lol:) on my wk tuber with 9 tooth pinion and i couldn't make the slipper stop clicking from the get go:shock:, this battery was awesome, but i know this thread is about the 7t so i have to add the only test i did was done on my hand, just to see if it was working, big mistake!, i have done this many times with most of my ep motors, but this thing just jumped out of my grip and scared the crap out of me:shock::lol:, this motor has some balls"thumbsup"

[volumeone]

The motor is boss.... No drag break needed for this sucker. Jumping off the floor is right. Can't wait to go lipo with this little devil. Crawls like a baby and runs like a hungery ethiopian.

[AKRCC]

I placed my order just now with paypal #1768. Thank You Holmes, Now will this work with the standard FX-R esc with a 14T limit or will i need to purchase a FX-R "Pro" with a no motor limit feature. Thx again

Rocky

[toytech93]

Hey JRH, do you still expect to start shipping out the preorders on the 21st ???