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Need help with Mamba 25. updated video again. Won't run on ground...

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Need help with Mamba 25. updated video again. Won't run on ground...

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Old 03-03-2008, 07:01 PM
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jtnktz
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Default Need help with Mamba 25. updated video again. Won't run on ground...

Alright so this is what is happening.


This is what I have it programed too:
Proportional brake with reverse lockout
50%
No cut-off
Normal
Low

I have also calibrated it.

http://www.youtube.com/v/bZhxXWqTj1s

Engine gets hot when on ground. When off ground and hit gas goes PERFECTLY! But when I put on the ground it goes sucky... I don't think it is gearing as I am running 22/45 which is the same as 19/41. ( http://www.rcuniverse.com/forum/fb.asp?m=7060354 )
Old 03-03-2008, 08:35 PM
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Default RE: Need help with Mamba 25. With videos!

http://www.youtube.com/v/lGvXMAhdjlo
Old 03-03-2008, 09:10 PM
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Default RE: Need help with Mamba 25. With videos!

This may be a stupid question, but are you using a 3 cell Lipo?

Normanski
Old 03-03-2008, 09:24 PM
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Default RE: Need help with Mamba 25. With videos!

ORIGINAL: normanski

This may be a stupid question, but are you using a 3 cell Lipo?

Normanski
Yes. Ok I got it to work a little better. BUT, now it goes stops goes stop goes stop and now I can hear the beep 10x better. I re soldiered everything so I know 100% sure that it all works. It is still getting hot... The instructions say that BL motors don't have polarity necessarily but if it goes he wrong way I have something mixed up? I have it connected red to red black to black and yellow to white. Is this right? Motor is still running hot.
Old 03-03-2008, 09:26 PM
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Default RE: Need help with Mamba 25. With videos!

What firmware are you running? I've heard of the new 1.17 firmware causing people problems...
Old 03-03-2008, 09:27 PM
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Default RE: Need help with Mamba 25. With videos!


ORIGINAL: Frozen72

What firmware are you running? I've heard of the new 1.17 firmware causing people problems...
I have no idea. I havn't updated it. I just bought it and got it in the mail today....
Old 03-03-2008, 09:29 PM
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superfastrc
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Default RE: Need help with Mamba 25. With videos!

the tech support at castle is really great, they will know what questions to ask you as they figure out the problem. call them in the morning, until then dont try to use it, it looks like i could possibly be the motor just as well as the controller. if its the motor, you could blow your controller by trying to make it move, i did that once on one of mine and it was looking just like your video. (may not be, but wait till you talk to castle before you plug it in again)

good luck
Old 03-03-2008, 09:31 PM
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Default RE: Need help with Mamba 25. With videos!


ORIGINAL: superfastrc

the tech support at castle is really great, they will know what questions to ask you as they figure out the problem. call them in the morning, until then dont try to use it, it looks like i could possibly be the motor just as well as the controller. if its the motor, you could blow your controller by trying to make it move, i did that once on one of mine and it was looking just like your video. (may not be, but wait till you talk to castle before you plug it in again)

good luck
But, I'm using an Ammo 3900 and other people have got it to work. Also I can't call them now!
Old 03-04-2008, 12:36 AM
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KRO
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Default RE: Need help with Mamba 25. With videos!

Did you calibrate the TX too the ESC ? , you need to do this to set FWD/NEUTRAL/REV .

Try adjusting your throttle trim also .
Old 03-04-2008, 12:17 PM
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Default RE: Need help with Mamba 25. With videos!


ORIGINAL: KRO

Did you calibrate the TX too the ESC ? , you need to do this to set FWD/NEUTRAL/REV .

Try adjusting your throttle trim also .
How do I calibrate it?
Old 03-04-2008, 12:23 PM
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Default RE: Need help with Mamba 25. With videos!

Everything you need to know about calibration is in the manual. Follow the steps in order and exactly the way it is described. I have done it to all 8 or so of mine without issues.
Old 03-04-2008, 03:40 PM
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Default RE: Need help with Mamba 25. With videos!

I got it calibrated heres an update video

http://www.youtube.com/v/S6XRdiEt1io

Engine is still getting hot.
Old 03-04-2008, 07:13 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08

No one can help me?
Old 03-04-2008, 07:14 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08

Is your drivetrain binding? Do you have a castlelink so you can update the firmware. Have you played around with the start up power etc.?
Old 03-04-2008, 07:24 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08


ORIGINAL: Frozen72

Is your drivetrain binding? Do you have a castlelink so you can update the firmware. Have you played around with the start up power etc.?
No the drivetrain is not binding. No I don't have castle link. Yes I have tried start up power.
Old 03-04-2008, 07:26 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08

I would say get a castle link and update to the latest frimware.
Old 03-04-2008, 08:22 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08

With a hot motor, you need to look at gearing too. What kind of gearing do you have and what kind of driving do you do? If it's mainly speed runs with a tall gearing, make sure you give it a break between heavy workouts. Also, add an aluminum heat sink on the motor. Sticky bearings could be trouble too. How well does it free-roll without the pinion in contact with the spur?
Old 03-04-2008, 08:31 PM
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Default RE: Need help with Mamba 25. With videos! UPDATED VIDEO 3/4/08


ORIGINAL: jmcvicker

With a hot motor, you need to look at gearing too. What kind of gearing do you have and what kind of driving do you do? If it's mainly speed runs with a tall gearing, make sure you give it a break between heavy workouts. Also, add an aluminum heat sink on the motor. Sticky bearings could be trouble too. How well does it free-roll without the pinion in contact with the spur?
Rolls great, i never driven it and was told 22/45 was good gearing for bashing...
Old 03-04-2008, 09:27 PM
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...

Another update
http://www.youtube.com/v/bZhxXWqTj1s
Old 03-04-2008, 10:05 PM
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...

Correct me if I'm wrong, but in the latest video it looks like the motor connections to the speed control are bare. Is it possible anything shorted out?

I take it that it never worked right since you first installed it. How long does it take for the motor to heat up while you are trying to make it go? Is the battery good? Do you have another battery you can try?
Old 03-04-2008, 10:30 PM
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banzaij
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...

Try setting startup power to high.

Also, updating firmware to 1.17 should help.
Old 03-05-2008, 07:13 AM
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...


ORIGINAL: BigTb17

Correct me if I'm wrong, but in the latest video it looks like the motor connections to the speed control are bare. Is it possible anything shorted out?

I take it that it never worked right since you first installed it. How long does it take for the motor to heat up while you are trying to make it go? Is the battery good? Do you have another battery you can try?
Only one connection is bare and no I have paid close attention to that. It gets warm after like the first 10 seconds.
Old 03-05-2008, 08:56 PM
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...

Well it is gearing... So I have to figure out my own gearing I guess. I crunched it today pretty badly.
Old 03-06-2008, 08:34 AM
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Default RE: Need help with Mamba 25. updated video again. Won't run on ground...

The gearing sounded a bit high - did you back the pinion down some? Maybe a 15T to start and go from there. You can bash with better acceleration and lower top-speed and it can typically be a bit more fun.

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