pic: 4587-Sheet Metal Chassis V.2

[Cash4587]

Originally Posted by AllenGregoryIV

I'm trying to think of other little annoyances from our drive train this year.

Are you going to spring up the modules or rely on the pneumatics to bring them up too? We really liked the springs because if we lost air or wanted to run our practice robot with out pneumatics it didn't really affect anything. If you go with springs make sure to fully CAD them we didn't and luckily had enough room to the side of the omni wheels to slide them over because in the intended configuration when the traction wheel was down the springs hit the omnis.

Think about the interface between the modules and the cylinders. We made small aluminum discs that just threaded on to the end of the piston. These pushed down on to VEXpro tube shaft. Over time we were able to dig pretty big groves into the tube shaft and would have to rotate them to get our ride height correct.

Also bumper mounts as always.

I've actually thought about the sprung up. I think the way 148 does it is actually with surgical tubing that spans from a standoff on their modules then they ziptie surgical tube between the modules to pull them up. I am not completely sure of this but it seems like a good idea. If not, I plan to put extension springs around the tube axle standoff that the piston actually pushes down on and attach them to the sheet metal above them.

As for the wear, I think if I were to put a delrin or nylon tube over the 1/2" tube axle that the piston pushes down on, then it should be fine.

Also for bumper mounts. I haven't really looked into ways to doing them, But I have a pretty good idea of how they will need to be set up. Tips and pointers however are always useful.