pic: Dawgma 1712 as of January 8th at 5:10pm

[laultima]

I remember at Atlanta someone looking at our bot and saying "Hmm... you used chassis metal for the manipulator and 80-20 for the chassis. I would have gone the other way."

80-20 is our favorite base material.

[EricLeifermann]

How did you attach the toughbox to your frame?

[Rich Kressly]

Originally Posted by EricLeifermann

How did you attach the toughbox to your frame?

We drilled right through the bottom of the housing and bolted it to the frame. One of our seniors last year used this method in the spring with the AM single speed and even with the shaft unsupported on the outside it ran fine without loosening. Our latest iteration is now lower to the ground with the drive bearings flipped over, which you can see here: http://www.chiefdelphi.com/media/img...a3f60049_l.jpg. There are two bolts through the bottom of the housing and we are also supporting the drive shaft on the outside with a bearing. We gave the drivebase a good workout on carpet on Sat 1/12 and even fully loaded to 145 lbs (simulating final weight with battery and bumpers) everything stayed tight and aligned.