[AdamHeard]

Originally Posted by Greg Needel

I know it is nice to have exact cad models of the wheels but for all intensive purposes you can just grab dimensions from http://www.robotmarketplace.com/mark...e_colsons.html

and draw cylinders which fit the model you are looking at.

That's what I did for the 1.625, 3 and 4 inch ones seen on banebots/robotmarketplace. I can appreciate thoroughness in CAD, but really all that matters is the OD and the width in terms of the design. An exact model isn't going to really help at all. Now, to completely contradict myself.... I did do some work on the models to make them match the shape (slight taper on the tread, groove between hub and outer surface, etc..) pretty close for cosmetic reasons.

But, c'mon. You're Craig Hickman.... You'll end up with a perfect model one way or another.