New Frame

new frame

Well after a long "quiet" period in the mascot activities, we've begun to make some new changes to the design. On the previous RBNO, Mike Lynch brought in some new castors and a couple were added to the CAD files. (you can see one of them here)

Previous attempts to intrest the group in using an "umbrella" baby stroller for the frame, failed. Although this design was light and "ready made", perhaps it was percieved as, well, baby stuff.

So we've got a new frame design, based on the previous design, using 1" square steel tubing and flat plate. The motors were re-oriented to take advantage of the boss cast into the motors (that prevent them from turning around the shaft). The location of the castor wheels were widened for stability. I've included PDF drawings of the frame parts here:

The units are in decimal inches and disregard the 3 decimal places.

gusset
frame01
frame02
frame03

If you're not familiar with machinists tapes, a decimal inch is divided into 10ths instead of the archictural 1/4qtrs, 1/8ths, and 16ths. The first decimal place is 10ths of an inch, the second is 100ths, the 3rd 1000ths. You can ignore the 3rd decimal place for our purposes.