Quote:
Originally Posted by bobl
We aren't really controlling it. Using a Banebot RS775 with a 3:1 transmission. Running at full power our tach shows a constant 2950 +- 15RPM.
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The Banebots M7-RS775-18 motor has a 12v spec free speed of 13,000 rpm.
But you say the motor is spinning at only 2950*3 = 8850 rpm with a fully charged battery.
8850 rpm is only 68% of free speed. Of course the motor speed will be less than its free speed, but 68% is quite a bit less. Some rough calculations indicate the motor would be drawing in the neighborhood of 30 amps. Can you measure the amps the motor is drawing to confirm this?
Quote:
Originally Posted by bobl
We are using 4" plaction wheels spinning at 2950RPM and have only minor scuffing on the skin. We are compressing the boulder 2" and are able to hit the high goal consistently (19 for 20) sitting on the outer works.
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Try reducing the motor voltage by half a volt and see what happens to your RPM and whether you still hit the goal.