Quote:
Originally Posted by Alex.q
We are building a collector system with the front roller wrapped in a grippy material, OD about 2.5". I was wondering what would optimal speed of the roller would be, and which motor/gearbox we should use to drive it. Is there a simple/general answer to this (I know there are different motors I can use, my main question is about the speed).
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The linear speed of the outer edge of the roller should be at least as fast as the maximum linear speed of your robot's drive train in order to pick up balls while you are moving.
For example, let's say a robot drivetrain is geared for a maximum speed of 10 ft/sec and it has a 2" diameter intake roller. In order for the edge of this roller to travel at 10 ft/sec, it needs to spin at at least 1146 rpm. The math:
10 ft/sec * 12 in/ft * 60 sec/min = 7200 in/min
7200 in/min / (2in * 3.14159) = 1146 rpm
You'll need to substitute in different values into the equations above based upon your robot's maximum drive train speed and your 2.5" roller diameter.