[EricH]

Originally Posted by Dowjonesbotics

Is this what they call a swerve drive???? But hten what's a crab drive???

I'm a little confused as to the difference

It isn't exactly in the modules. You could have both of those with the same modules and different turning gearing.

It's the way it's set up. Correct me if I'm wrong, but a swerve drive has two or more sets of modules and a crab drive only has one. (Or it's the other way around.)

I'm going to say that 1/10 is too thin for stress points. What a lot of teams do is take 1/4 and put the holes in, then mill the rest of the plate out, leaving a border and a small area around each hole at original thickness to add strength. You really don't want to make a mistake and go too thin; having the thin stuff fail mid-match will take your robot out of the match. No spare means you may be out of the competition.

If nothing else, do the stress analysis and post it so that we know that you know what you are doing. If that analysis (which should probably take into account getting hit by 3 robots simultaneously from the same side) shows that it won't break, even under running conditions, then I'll retract my statement that 1/10 is too thin. If it doesn't, then we'll help you redesign so that it won't fail.