microgoat
I wanna be Dave
just traded email with Castle Creations. they like it. could a Mamba crawler package be in our future?
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OutRunner brushless motors?
- Thread starter microgoat
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microgoat
I wanna be Dave
here are some better pics.
the motor looks like it's in a cave. that cutout fit the 550 pretty tightly.
the motor looks like it's in a cave. that cutout fit the 550 pretty tightly.
syco133
RCC Addict
go out and beat on the booger and let us know how it does.
microgoat
I wanna be Dave
i've been beatin' it, and it pulls like a champ!
somtimes it's a little glitchy starting out. will try high starting power and normal advance and see if that clears it up.
somtimes it's a little glitchy starting out. will try high starting power and normal advance and see if that clears it up.
microgoat
I wanna be Dave
the glitch is gone!
yeah, it was something simple. the stud that holds the tx antenna to the circuit board came loose. tightened it up and no more glitchin'.
i am now 100% behind this whole brushless thing.
funny thing: i was showing off at the LHS. asked the car guys (customers & bystanders), "think this little motor can walk this truck straight up a wall?" the unanimous answer was no way. then i walked it straight up the wall and they still said no way.
asked an airplane guy the same question. he took one look and said, "well, yeah, that's an AXI."
yeah, it was something simple. the stud that holds the tx antenna to the circuit board came loose. tightened it up and no more glitchin'.
i am now 100% behind this whole brushless thing.
funny thing: i was showing off at the LHS. asked the car guys (customers & bystanders), "think this little motor can walk this truck straight up a wall?" the unanimous answer was no way. then i walked it straight up the wall and they still said no way.
asked an airplane guy the same question. he took one look and said, "well, yeah, that's an AXI."
i think brushless will slowly work its way into crawlers. before you, i had not heard of one instance of a working brushless combo in a crawler. with castle's fine programming, i hope to convert all my crawlers to brushless in time. then i wont have any brushed motors installed in anything!
btw, how is the forward- reverse action? wiill it kick in quick with the esc set up properly?
btw, how is the forward- reverse action? wiill it kick in quick with the esc set up properly?
microgoat
I wanna be Dave
the reverse action is almost too quick. gotta be careful with the trigger. i put a little deadband in the throttle and that seems to have helped.
also with less weight up top, i spent hardly any time on the roof today. it handles so much better it's like a ... like... like a really good crawler that doesn't tip over.
also with less weight up top, i spent hardly any time on the roof today. it handles so much better it's like a ... like... like a really good crawler that doesn't tip over.
my motor is gonna be just as heavy as any other when it comes, but it will be a touch over 1/2 horsepower :evil:
i could really see a smaller motor like yours working wonders in a tlt rig, its only 2 ounces!. put it in a small tranny like a AE or LOSI, use some small cells, you would have a very capable comp crawler if you were so inclined. i havent been this exited since i got brushless in my emaxx a few years ago!!
i could really see a smaller motor like yours working wonders in a tlt rig, its only 2 ounces!. put it in a small tranny like a AE or LOSI, use some small cells, you would have a very capable comp crawler if you were so inclined. i havent been this exited since i got brushless in my emaxx a few years ago!!
microgoat
I wanna be Dave
johnrobholmes said:
1/2 horse? better stock up on ring & pinion gears! and driveshafts, too. i was thinking about some 2/3A cells, but i'm not sure they'd provide enough current to get this pig going. in a Mini-T, no problem. although a lot of comp rigs use em so there's definitely potential. plus there's a lot of more-cell packs out there for the airplanes (i'm thinking of the ParkZone P-51 battery, 9 cells) for more speed, with about the same weight as the sub-C 6-pack.
would the Mamba handle it, though? i need to put the Whatt meter back on it.
i talked to castle today for about 30 minutes on the phone. it was pretty cool to just chat about new tech and this and that.
do you know if the firmware on your esc is updated micro? they have completly new (to me) programming for the startup sequence. he said it might even be able to work with a two pole motor without stuttering under severe load. i might have to gear down the 5400Kv mamba and see what it does in a crawler. just for fun.
also, the mini mamba esc's can handle a two pole rotating at 260,000 rpm. basically there is no motor that can outpreform the esc at this point. and we are talkin a tiny little beast. i was trying to get him to admit that everyone needs more bec power. he wouldnt tell me if the mamba maxx was going to be a linear or switching BEC. hopefully its going to have more than 3 amps so we can have all the BEC we need. i told him i needed 10 amps for my applications.
with enough support we can mould the market to help us, and castle is the best company for brushless. they created the brushless airplane market, they need our help for the brushless crawler market.
do you know if the firmware on your esc is updated micro? they have completly new (to me) programming for the startup sequence. he said it might even be able to work with a two pole motor without stuttering under severe load. i might have to gear down the 5400Kv mamba and see what it does in a crawler. just for fun.
also, the mini mamba esc's can handle a two pole rotating at 260,000 rpm. basically there is no motor that can outpreform the esc at this point. and we are talkin a tiny little beast. i was trying to get him to admit that everyone needs more bec power. he wouldnt tell me if the mamba maxx was going to be a linear or switching BEC. hopefully its going to have more than 3 amps so we can have all the BEC we need. i told him i needed 10 amps for my applications.
with enough support we can mould the market to help us, and castle is the best company for brushless. they created the brushless airplane market, they need our help for the brushless crawler market.
ok, that was a mouthful- but i have more.
the thottle curves, brake curves, reverse curves, throttle %'s, reverse timing, deadband, and probably more are programmable on the maba via the usb link that they sell. the rep told me how he was cruizing around the hallway at work with his mamba 8000 package at only 4 mph. that is crazy controll!! if you have ever driven the 8000, or even the 6800 then you know how incredible that control is.
peace out.
the thottle curves, brake curves, reverse curves, throttle %'s, reverse timing, deadband, and probably more are programmable on the maba via the usb link that they sell. the rep told me how he was cruizing around the hallway at work with his mamba 8000 package at only 4 mph. that is crazy controll!! if you have ever driven the 8000, or even the 6800 then you know how incredible that control is.
peace out.
microgoat
I wanna be Dave
i'm quite sure the programming on my Mamba is NOT up to date. it's been sitting in the back of the LHS for the better part of a year. it'd be fun to play with a new one and see how much difference there is.
you can update the one that you have
microgoat
I wanna be Dave
johnrobholmes said:
yeah, but i don't have to! i got an email from Castle today, they're sending me a brand-new up to date Mamba!
i may have to start flying just so i can buy more of Castle's stuff.
microgoat
I wanna be Dave
Outrunner 1, pinion shaft 0
for those who still think brushless motors don't have torque:
fortunately i ordered 2 spare gearsets a couple weeks ago. the LHS should have them soon. this thing don't crawl worth Digler in 2wd!
for those who still think brushless motors don't have torque:
fortunately i ordered 2 spare gearsets a couple weeks ago. the LHS should have them soon. this thing don't crawl worth Digler in 2wd!
did that snap the input shaft off?? where the diff drive gear is? ohhh boy are we in for a bumpy ride.
nice parts mat btw.
nice parts mat btw.
microgoat
I wanna be Dave
yeah, tweaked it right off. i thought the gears would go first, but not this time.
at least i have 7 other r/c's to play with til i get it fixed.
at least i have 7 other r/c's to play with til i get it fixed.
radishkid
Quarry Creeper
OK, I've been fascinated by this thread and it is one of the most useful that I've seen on this forum in a while. I'm definitely going to try this one out on my TLT. One question, I'm looking at the mounting pattern, and I presume that it is standard 540 BCD? Meaning that I can pretty much slap it into a 'pede tranny? Would anyone be able to help me take a stab at gearing with this setup in the 'pede? 8t seems super low, maybe it can handle 11-13?
with the torque, you could gear it up. but, the rpm per volt is going to be very similar to a lathe motor. actually, it will be a bit faster because brushless dont bog down under load like brushed.
the mounting pattern will depend on the motor. a standard 540 is 25mm spacing. some outrunners have that, a lot dont. the mp jet i ordered has a 25mm pattern i think, but it is a hoss of a motor that should work on large scale axles too. testing will tell. i will post up my findings as well once i get up and running (hopefully in the next few days)
the mounting pattern will depend on the motor. a standard 540 is 25mm spacing. some outrunners have that, a lot dont. the mp jet i ordered has a 25mm pattern i think, but it is a hoss of a motor that should work on large scale axles too. testing will tell. i will post up my findings as well once i get up and running (hopefully in the next few days)
microgoat
I wanna be Dave
if you use the same motor (Axi 2212/26) you'll need to make an adapter plate to make it fit 540 hole spacing. no biggie, just drill 5 holes in a piece of aluminum and countersink 2 of 'em. this motor has a 1/8 shaft, and the shaft comes out the same side as the mounting holes (which a lot of ourunners don't (although some motors have a reversible shaft)) so i't close to a bolt-in. many of the larger outrunners use a 5 or 6mm shaft, which means drilling out your pinion gear. you'll also have to file a flat spot for the pinion to sit on.
slightly taller gearing should be fine. you want to end up with an overall gear ratio around 44:1 for best torque. with a single-speed Pede tranny you may not get enough wheelspeed. if that's the case just add more cells. the Mamba can take up to 9 (ParkZone P-51 Mustang uses a 9-cell 1000 mAh pack), or use an 11.1 lipo.
slightly taller gearing should be fine. you want to end up with an overall gear ratio around 44:1 for best torque. with a single-speed Pede tranny you may not get enough wheelspeed. if that's the case just add more cells. the Mamba can take up to 9 (ParkZone P-51 Mustang uses a 9-cell 1000 mAh pack), or use an 11.1 lipo.
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