Derek, I need to go look at your build page again, so that I can get a better visual of this... I figured that there was something requiring the carriage bolts to keep their square part, as I can't imagine doing 48 square holes out of sheer perversity :)
On 6/9/09, Derek Engelhaupt <[email protected]> wrote: > 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 <[email protected]> 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 <[email protected]> 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 >> > >> > > > > -- Clark in Georgia M4 Sherman --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
