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Unread 29-02-2016, 11:09
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MechEng83 MechEng83 is offline
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Re: Motor speed issues

Quote:
Originally Posted by Rflax40 View Post
On our second robot we have a pair oh shooter wheels drive by a mini cim. Our desired speed on it is around 3600 rpm. Currently our main robot can reach this speed easily, but on our practice bot the motor fails to get up to speed even with noticeably less friction than our original shooter. It also tends to stall out more and slow down under the load of the ball. Is there any electrical problems that could be causing this or would it likely be mechanical issues.
Have you calibrated your motor controller? I've definitely seen behaviors where one direction on the motor controller seems sluggish because the signal is only telling it to go to something like 50% Vbus in one direction, rather than 100%
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