View Full Version : what does the super rooster have that the rooster dosen't...
badtodabone
09-11-2004, 08:50 AM
and is the rooster good for crawling? can it handle intergy lathe motors with 9 tooth pinions? I am rebuilding Fireant and need a new esc but can't afford a super rooster so help me out here. Thanks
SR5Dave
09-11-2004, 09:16 AM
ANYTHING can handle lathe motors w/ 9 tooths. Those are 55T motors. No matter how you wire them its less current than a stock motor. Way less.
I think the diff between the rooster and SR is that the Rooster can do 6-8 cells, and down to 11 turns (?) and the SR is 10cells (It will do more) and no motor limit.
But actually, all ESC's use a certain style amp, which are rated to like 25V. Any of them could probably handle more, the problem is the motor, when you use more volts than reccomended it basically creates a short circuit and pulls to much current, thats what kills the ESC.
But again, Lathe motors don't pull jack for current. Just get the Rooster. Hell, a super cheap one could probably handle them. (But I would still reccomend the rooster) I'm also happy with my EVX, which was 110$ shipped.
bigred
09-11-2004, 09:18 AM
the rooster is really for a one motored truck the super rooster is for two motored trucks other than that i think there the same oh ya the rooster can only handle stock motors and the super rooster can handel unlimited motors and i PM you back
SR5Dave
09-11-2004, 09:31 AM
the rooster is really for a one motored truck the super rooster is for two motored trucks other than that i think there the same oh ya the rooster can only handle stock motors and the super rooster can handel unlimited motors and i PM you back
Rooster can handle 15 turns. Stock motor is 27. Rooster can handle dual motors in series, but two stock motors in parralel is pushin it. With lathe motors I can't forsee any problem though.
schlabinski
09-11-2004, 11:42 AM
Don't forget to compare the BEC specs. If you want to run two servos without a receiver pack, the super rooster will give you the advantage.
AdamF
09-12-2004, 07:02 PM
I run a regular rooster with 2 Mag mayhems and 9 tooth pinions. Never overheated, no problems.
Wookie
09-12-2004, 07:13 PM
The big difference between the Rooset and the Super rooster is:
1. The super rooster if I remember does not have a turn limit and if it does it's very low. The rooster is limited to 15 turns. Both can easily run two 55 turn motors in series or parallel.
2. The super rooster has 3 amps of current for it's BEC which is very helpful when running two servos. The Rooster only has a .5 amp BEC, which makes it hard to run two servos with out a receiver pack.
Section8
10-25-2004, 12:42 AM
Would the Rooster Handle 10 cells with a single Lathe motor? Does the draw make any difference at all to the ESC if it is looking at 12 volts when it only wants 7?
It'd be alot cooooler if it did...
Greg
Grizzly4x4
10-25-2004, 09:04 AM
http://www.teamnovak.com/products/ESC_Specs/revers_spec/reverse_index.htm
Section8
10-25-2004, 09:37 AM
It answers alot of questions, except if an extremely high number of turns will change the voltagel imit/requirement of an esc. Everything on that page is directed to the lowest turns. I would assume that you could run two of the lathe motors in series with the Rooster, as was posted here, and they think that you could probably run them in parallel as well.
Unless someone knows what the voltage/amprage the lathe motor uses (or has an electronics background) the specs won't help. I don't think the esc would like running a little light bulb with a 10 cell pack (you can't plug 110 v equipment into a 220 outlet and expect it to work like it should not matter how small the draw), but I would like someone who knows something about electronics to tell me that since I know as much about AC and DC as moon rocks..
Greg
Grizzly4x4
10-25-2004, 09:51 AM
since I know as much about AC and DC as moon rocks..
Greg
:lol: :lol: :lol: :lol:
I have heard of people running a SR on 12 cells even though it is only designed for 10. So I would say there is a safety factor in the ESC's that may allow more input voltage than recommended but I can/will not recommend that anyone do it. I dont want to be blamed for a cooked ESC.
Current draw through the ESC will be less for a lathe motor than a stock can and I have run dual stock cans wired in parallel with a rooster, however, input voltage limits are not affected by what motor you use.
Section8
10-25-2004, 10:33 AM
Thank you very much.
Grizzly4x4
10-25-2004, 11:06 AM
No problem. 8)
After reading back through the post I realized that I was basicly repeating what Dave said.
But actually, all ESC's use a certain style amp, which are rated to like 25V. Any of them could probably handle more, the problem is the motor, when you use more volts than reccomended it basically creates a short circuit and pulls to much current, thats what kills the ESC.
Just didnt want Dave to think I was ignoring him. :flipoff: :lol: :lol:
Section8
10-25-2004, 11:42 AM
Thats the post that kind of let me believe that it might be possible to go over the voltage (even though I though better of it) since the draw from the lathe motor is low, that adding a "little" short :lol: wouldn't be additive enough to release the magic smoke. :roll:
Yeaaa....I think that I will refrain from posting any more in this thread.
:oops:
SR5Dave
10-25-2004, 12:27 PM
Thanks for the credit griz ;)
Lathe motors don't pull anything, at all. I sealed my EVX in tupperware so I could play in the snow, not a single problem :lol: (thats lathe motors on 14.4V even) Anything will handle them, probably even the rooster with a few extra cells.
iwantoffroad
10-25-2004, 12:54 PM
Grizzly4x4
I tinking of a new esc to buy and wanted to know?
Current draw through the ESC will be less for a lathe motor than a stock can and I have run dual stock cans wired in parallel with a rooster,
So your saying that you have done this before
Rooster with 2 stock cans and run them in parrallel.
Does the rooster get hot?
Which type of nicad battery is needed (volts)
thanks
T-Man
10-25-2004, 01:01 PM
Okay, here is a question for you. I have a Clod now with a Hitech 645 servo on front and I am going to put lathe motors and possible a reduction unit on it.
If this is all I am running, then a Rooster is good enough for this? And I can pull my SR and put it on the new Clod I have with dual steering set-up, lathe motors and stormer or TTR reductions? And maybe some Kongs.
I have been trying to figure out what all I want to do with this today, but it keeps coming around that I should just pick up a SR and leave my older one alone.
Grizzly4x4
10-25-2004, 01:37 PM
Grizzly4x4
So your saying that you have done this before
Rooster with 2 stock cans and run them in parrallel.
Does the rooster get hot?
Which type of nicad battery is needed (volts)
thanks
Grizzly4x4
I have a Clod now with a Hitech 645 servo on front and I am going to put lathe motors and possible a reduction unit on it.
If this is all I am running, then a Rooster is good enough for this?
I ran The Duke for many, many months with stock cans, a HiTec 5645MG steering servo, and a Rooster ESC. I had both 5" Masher 2000 tires and Savage tires on it during that time and never had any overheating problems. The ESC would get pretty warm but never did a thermal shutdown.
Later on I installed MM motors, sometimes the ESC would "freeze up" when the big tires were bound up and I was giving it throttle at the same time but as soon as I let go of the steering the throttle came back. Again, it never did a thermal shutdown though. To fix this occasional "freeze" problem I installed a receiver pack. I am testing a 5V voltage regulator soldered to the main battery pack right now that should eliminate the need for a receiver pack. It's werking great so far.
So, iwantoffroad and T-Man, because I have also run lathe motors I can honestly say that running a Rooster, dual lathe motors or stock cans in parallel, a single HiTec 5645MG steering servo, and a 7.2V NiCad main battery should werk fine.
If you have problems a receiver pack will fix it. Or look for my write up on the voltage regulator coming soon. 8)
T-Man
10-25-2004, 01:47 PM
I guess my issue is the extra weight of the receiver pack. Maybe I will just save the extra for the SR and forget about it.
I have also been reading about several people using the F1 ESC's. Does anyone here have any experience with these? From what I remember when I looked at them for my XXXT, I would be better off with the SR anyway, but just thought I would ask.
iwantoffroad
10-25-2004, 06:50 PM
Thanks Grizzly4x4
I decided to get the rooster.
thanks for your imput
MUD4FUN
10-26-2004, 04:46 AM
Hi Grizzly4x4, I noted that you were running the Hitec 5645 on just 5v.
I have recently fitted a 5745 to my crawler and it won't work with the standard feed from the ESC (Super rooster) or even a standard 4.8v receiver pack. I have had to install a 6v RX pack which seems to have cured the problem.
I found the servo would work fine for a bit but then under throttle and holding a turn on rocks etc the servo would glitch alot and even just 'stick' in one direction. I can't think that there is anything wrong with the servo as when it is run on the bench it works fine!
Did the 5645 require 6v too or is that part of the new 5745 spec do you think?
Other than that the servo is excellent and has awesome torque. Do you know if the Super Rooster can be modified to provide 6v to the RX instead?
Cheers, Ian.
Grizzly4x4
10-26-2004, 02:56 PM
Thanks Grizzly4x4
I decided to get the rooster.
thanks for your imput
No prob., I hope it werks as good for you as it did for me. 8)
Ian, actually I am not running it on 5v, I plug the 5V voltage regulator (VR) into the receiver so that the servos can pull current through either the BEC or the VR. With 5V coming from the VR and 6V coming from the BEC I think the voltage is actually 5.5V.
The VR I am using is only rated at 1 amp and since I am testing it on a rig with front and rear steering servos I did not think the VR would be able to provide enough current alone. What I am trying to do is add another path for the current in case the servos are pulling too much for the BEC alone.
Super Roosters are rated at 6V/3A on the BEC circuit from the factory
(the specs are here http://www.teamnovak.com/products/ESC_Specs/revers_spec/reverse_index.htm )
I would have to guess that your servo is pulling enough current through the BEC that it is making the ESC ‘freeze up”. That is why the receiver pack fixes the problem, the servo can pull as many amps as it wants through the RX pack without affecting the BEC. I believe the BEC not only powers the servos but the main function of the ESC itself so if you have a lot of load due to the motors and a lot of load due to the steering servo you can reach the 3 amp current limit fairly easily.
I don’t know why your servo would not werk with the 4.8V RX pack, HiTec rates the HS-5745MG at 208 oz @4.8V. :?
Hope this helps,
Griz
MUD4FUN
10-27-2004, 03:07 AM
Many thanks Griz, I like the idea of the voltage regulator. I may have to give that a go. Although the seperate 6v RX pack works fine it adds an awful lot of weight up top which is what I'm trying to get rid of! The 6v pack I'm using is a Sanyo 2400, almost the same weight as a standard stick pack so that is TWO stick packs I'm having to carry around......
typical isn't it, you solve one problem (the poor steering) only to end up with another problem (too high a CoG)....this hobby can be very frustrating at times :!:
Iwantoffroad - I've run both normal rooster and super roosters in my truck using 8.4v and the geared down 550 motor and the roosters barely get warm after an hours use. I can get roughly 45mins from a 2000NiCD pack. The motor is also only just warm after that length of time. However, I've run a rooster in another truck running a mag meyhem on 8.4v and the rooster did get quite warm so I fitted a fan to it. It has never failed though and it has been working for over a year. I really like the roosters and super roosters but over here in the UK they are too easily damaged by water (it rains alot where I live) so I have to fit them into waterproof boxes. I lost a couple of roosters in the early days down to even just a few drops of rain.
iwantoffroad
10-27-2004, 07:21 PM
MUD4FUN
Nice
I'm going to run to stock motors and gear them down and its a little bit chilly were i live so the rooster will hold up fine with no fan.
I just got to keep saving my lunch money and go to work.
Currently have 100bucks saving for a gecko then going to trade for some axels and then buy a rooster i'll grab my other radio from my other rc.
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