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    Jumping, but not in a good way. - 10/21/2009 7:45 PM   
    jenius8477



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    From: New Iberia, LA, USA
    Status: offline     		Ok, I am new to crawling in rc scale ( i have previously built a 1:1 crawler for superlifts rock comp). I have a Redcat Racing Super Crawler and when i try to use a 7-cell pack it jumps. its like the esc is seeing it as a 12 cell that is too low to run. any ideas?

    < Message edited by jenius8477 -- 10/23/2009 1:10 AM >

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    RE: Jumping, but not in a good way. - 10/21/2009 8:21 PM   
    t9dragon



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    Status: offline     		What do you mean by "it jumps"? What battery, esc and motor are you using?

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    RE: Jumping, but not in a good way. - 10/22/2009 5:18 PM   
    jenius8477



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    Status: offline     		Well i am using the stock electronics. Twin 100turn motors and a 3300mah nimh. but the jumping only occurs when i use my 2s lipo or my 7cell nimh.

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    RE: Jumping, but not in a good way. - 10/22/2009 9:34 PM   
    Alpha Male



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    From: Spring, TX, USA
    Status: offline     		Jumping? Twitching? They could be caused by electrical noise if you don't have any capacitors installed on the motors. It seems strange to me that two different batteries, like the 3300mah and the 2 cell LiPo have different effects on the truck. With the 3300 everything is fine, but with the LiPo the truck jumps?

    Is your transmitter range normal?

    It could be the ESC. With increased voltage maybe it is sending intermittent signals to the motors.

    Could the motors be arching with the higher voltage?

    Reset everything and keep your fingers crossed. Solder three capacitors on each motor. Shield the motor wire connections with heat shrink tube. Start trying to eliminate components by trying another ESC, another receiver etc.

    I wish I could help, but I'm just guessing.

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    RE: Jumping, but not in a good way. - 10/23/2009 12:58 AM   
    jenius8477



    Posts: 26
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    From: New Iberia, LA, USA
    Status: offline     		i think that because the esc sees the increased voltage and thinks its a high voltage pack that is just dead cause when my other packs go dead, the jumping occurs but less powerful.

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    RE: Jumping, but not in a good way. - 10/23/2009 6:59 AM   
    jenius8477



    Posts: 26
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    From: New Iberia, LA, USA
    Status: offline     		just a few pics after a few mods


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    RE: Jumping, but not in a good way. - 10/23/2009 8:17 AM   
    Alpha Male



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    Status: offline     		Looks good!

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    RE: Jumping, but not in a good way. - 10/23/2009 8:18 AM   
    jenius8477



    Posts: 26
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    From: New Iberia, LA, USA
    Status: offline     		tomorrow at work im gonna be trimming down the monster bumpers into something more manageable lol

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    RE: Jumping, but not in a good way. - 10/23/2009 10:58 PM   
    jenius8477



    Posts: 26
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    Joined: 6/8/2009
    Last Login: 5/11/2010
    From: New Iberia, LA, USA
    Status: offline     		after my mods to the bumpers and greasing of the trannys.

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