Thread: Forward/Reverse difference in drill motors.
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Unread 24-06-2002, 02:38
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#0047 (ChiefDelphi)
  
Join Date: May 2001
Location: Pontiac, MI
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Yes, it can be necessary
Posted by Matt Leese at 03/21/2001 12:53 PM EST


Other on team #73, Tigerbolt, from Edison Technical HS and Alstom & Fiber Technologies & RIT.


In Reply to: Is this really necessary??
Posted by Tom S. on 03/21/2001 12:36 PM EST:



It can actually be a significant drift affect. It all depends on the design of your robot. Generally, with a two-wheel chair wheel and two-caster wheel robot with casters in the front, the drift can be large. This is especially true when operating at very high speeds (take a look at 7's robot last year -- it had no gearing and the drift was horendous). When dealing with 4 non-swivel caster wheels (as 177 is, I believe), the drift is much less noticable. This is because the robot is not as manuverable because there is additional friction from all the wheels being dragged in a turn as opposed to casters where there is much less dragging. It is also much more of an issue when using one-joystick drive because that makes it much harder to compensate.

Matt who fixed it in code last year on 7 but found there was no need to this year on 73's robot
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