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Old 2011.01.07, 01:23 AM   #16
EQMOD
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Quote:
Originally Posted by wildthing View Post
the ESC is a BL ESC rated for 10A sold in china.




5v BEC
Forward, Brake, Reverse... ABS brake (all other features programable manually and/or through a prog-Box)
Thanks

Wildthing here was actually the one who provided me with the ESC. Great Stuff!!

Here are the programmable functions;

- Reverse On/Off
- Motor Timing adjust from between 0 to 30 degrees in 1 degree increments
- Acceleration : Soft, Common, Hard
- Battery Type : NiCd/NiMh, Li-Ion, Li-Pol
- NiCd/NiMh Cut off voltage : 0.05V, 0.4V, 0.5V,0.6V, -- 1.0V
- Number of Cells Li-Ion, Li-Pol
- LiIo/LiPo Cutoff voltage
- Cut-off type: Soft, Hard
- Throttle Curve: Logarithmic, Linear, Exponential
- ABS Brake on/off
- Power Limit for Forward - off,75%,50%,25%
- Power Limit for Reverse - off,75%,50%,25%
- Delay Time of startup : 0.25sec,0.5,0.7,1sec,1.5,2sec,3sec,5sec
- Forward Point: Automatic, 1.7ms,1.8ms,1.9ms,2.0ms
- Reverse Point: Automatic, 1.0ms,1.1ms,1.2ms,1.3ms
- Timing Monitor: on/off
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Old 2011.01.07, 07:31 AM   #17
drhavy
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Wow, thank you for all the input. This definitely convinces me how doable this is... Totally agree with you on the Bl motor and the reason to do this mod.

Like it more each time. Wonder if that BL motor fits in the AWD. The motor was origionally for a CB100 right, or that size? Looks that way.

He he, I get chills thinking about it. Awsome.

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Old 2011.01.07, 09:04 AM   #18
wildthing
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I think it would fit an AWD... the motor is small. diameter is 12mm, can lenght is 22mm... shaft is only 1.5mm. modification is required to make a motor mount and properly mount the pinion.

FA130 vs BL motor size (picture taken by EQMOD)
http://i263.photobucket.com/albums/i...motor_0001.jpg

If you are familiar with the losi xcelorin BL motor... it is of nearly the same size.
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Old 2011.01.07, 10:40 AM   #19
drhavy
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The motors look small enough! Did you try the outrunner yet. I was thinking of trying that one out.

I have a cb100 and a couple of those motors lying around. Gonna order the stuff i need to do this. Thanks.
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Old 2011.01.07, 06:20 PM   #20
EQMOD
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The TurboAce motor is actually a Losi Xcelorin replacement upgrade motor

http://www.wowhobbies.com/turboacebl...tpinion-2.aspx
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Old 2011.01.08, 02:33 AM   #21
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Please post info on the steering servo board.

I did a similar conversion using the board from a small Blue Arrow servo and I sometimes get oscillations where it seems to overshoot, then overcorrect the other way.

Does your steering behave well?
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Old 2011.01.08, 04:08 AM   #22
EQMOD
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Connections pretty much standard;





The servo is pretty much stable on my setup.
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Old 2011.01.08, 10:59 AM   #23
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I have it wired correctly, I think it is just trying to drive the motor too fast or maybe doesn't work well with the range of the F1 feedback pot.

I was asking for details or source of the board you used. I watched some of your videos and the steering looks like it works very well.

.
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Old 2011.01.08, 06:46 PM   #24
EQMOD
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here is one little test while the tx and rx is active; if you force the wheels to steer on one side by hand, does the servo motor buzz ? I am basically using the type of servo board that sends a pulse width modulated fixed amplitude pulses on the motor (cause of the buzzing) instead of the type that varies the voltage (amplitude). My first attempt actually was that kind that varies the voltagte and it usually oversteers or barely moves at all even with steering input from the TX.

Right now i am using a Esky 8g Servo control board which i got from a Esky Lama V4 rc helicopter.

Last edited by EQMOD; 2011.01.08 at 06:50 PM.
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Old 2011.01.09, 02:03 PM   #25
drhavy
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EQMOD,

Thanks for the help, got my stuff ordered and on the way. Before this thread I was going to dump money into several ideas (none brushless), but what I really wanted was to get to brushless. So your post has helped me to buy the right things for the project.

I have to ask, what do you find to be a drivable top speed for the average track... lets say a mini96 or something slightly larger? And what voltage did you end up using. I'm thinking of even trying 3.6 LiFe 500 cells 2 or just the 4 AAA cells are good enough?
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Old 2011.01.09, 07:30 PM   #26
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Here is a link to a Mini Z with a X racer engine and LiFe 400 mah cels. It says he gets 15 min: I think that looks like a good target max speed for that size a track. Maybe slower for smaller tracks. Is that BL motor w/ the NiMH's similar to this in speed?

http://www.youtube.com/watch?v=g0mRYOK_qYg

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Old 2011.01.15, 04:55 PM   #27
EQMOD
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Here are more Dyno runs on the F1 after a ball bearing upgrade ;





Dyno run at 2S - 65 Km/h

http://www.youtube.com/watch?v=Sg0Teurxxks


Dyno run at 3S, throttle only at 70% due to tire ballooning - 74Km/h

http://www.youtube.com/watch?v=Swv-50Lbb14

Tire ballooning at hi-speed;

http://www.youtube.com/watch?v=F3_uCad8c-4
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Old 2011.01.15, 05:23 PM   #28
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next upgrade.... ball differentials with ceramic bearings... hehehe
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Old 2012.08.22, 10:53 AM   #29
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Love this things.
Nice work man!
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