I wish I had a lathe.. that would make things alot easier
Till: thanks haha I actually am going to college for Mechanical Engineering and do plan on applying for a mechanical engineering job at Losi and Associated down the road.
Unfortunately, today was not such a good day at the track.. within the first minute or two a front a-arm broke. I accidently ran into a pipe and I didn't feel like it hit it very hard at all. But the a-arm broke around the hinge pin hole so these 3d printed a-arms are definatly not strong enough to be used.
I put another a-arm on but the same thing happened just as quickly.
It was hard to tell how the traction was but it seemed to have quiet abit. Everything else I wasn't really able to test becuase I only got to drive it for a couple minutes.
So it was a waste of time.. but its definatly better to work out these things now then race day.
However I did weigh it at the track...ready to run it weighed in at 1805 grams. So about 300grams heavier then the minimum. This is definatly something I'm going to be wanting to lower. I think a carbon chassis will help.
What now? well I have to figure out a way to make new a-arms out of a stronger material. I'm thinking about making "hybrid" a-arms by cutting up B4 a-arms and bolting them to 3/8" lexan pieces that determine the length and hold the pivot balls. The other option is to attempt to cut them out of 3/8" lexan or delrin. Making a-arms is pretty hard to do accurately.. perhaps I will find some place to mill them out of delrin...
I'm not sure.. but what I do know is that time is ticking and I need to get this thing back out on the track.