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Re: Robot can't rotate, CIMS stop working !
Quote:
Originally Posted by cilginbilgin
We are using a 4x4 drive with 2 CIMs only. The gear ratio is 2 (the one on the wheel is bigger). The drive train is 27 by 37 inches. Tank drive.
The cables that we use cause a huge tension on the shaft of the CIM.
We checked the frame, there are no shortcuts.
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Sounds like basically a 4 wheel tank drive with 1 CIM per side on a full size frame. Belt tension is excessively high. 2:1 gear ratio.
I think you just identified the problem.
The gear ration is too low. One motor per side in tank drive mode is not enough for that gear ratio. 12:1 might be fine in that configuration.
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CalGames 2009 Autonomous Champion Award winner
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2012 Sacramento Semi-Finals, 2012 Sacramento Innovation in Control Award, 2012 SVR Judges Award.
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2014 2X Rockwell Automation: Innovation in Control Award (CVR and SAC). Curie Division Gracious Professionalism Award.
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