I need the square to keep the suspension arms in the correct orientation. As the pivot, well pivots the square portion keeps the shaft from turning. I attached my springs to a bolt (lever arm) substituted for the set screw in a shaft collar. When the shaft collar and lever rotates against the spring, the square portion of the bolt moves the swing arm on the outside of the chassis. That way I can tighten the nut and shaft collar for a little more resistance if needed. The whole thing is riding on bearings (one on the inside of the chassis and the other on the outside). Simple in design, lots of labor.
Derek T065 On Tue, Jun 9, 2009 at 7:20 PM, Modena <b...@holnet.net> wrote: > > Derek, would have been easier (and much quicker!) to grind the square > bits down to round > > On Jun 10, 9:23 am, Derek Engelhaupt <tan...@gmail.com> wrote: > > I hated cutting suspension arms especially because I used carriage bolts > > (square holes). I had to drill the approximate hole size after cutting > the > > arm to length on a steel cutting chop saw and then use my Skill saw to > cut > > out the square. Once the square was close, I used a file to clean up the > > edges of the hole and do the final fitting. Very time consuming indeed. > > Then the bar stock I used was fairly thin. So thin that the square part > of > > the bolt interfered with getting the nut tight. Rather than start over > with > > a different design, I squared out some holes on some large washers to act > as > > spacers. Had to go through the whole process a second time. And then a > > third time to mate the carriage bolts to the chassis. Ended up having to > > make 48 square holes.... > > > > Derek > > T065 > > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
