pic: 4587-Sheet Metal Chassis V.2

[AllenGregoryIV]

Originally Posted by Cash4587

I like that idea, however looking at it, it would make the module only about 1/4" smaller due to the fact that the versa wheel is so wide becasue of the versa keys. If I wanted to make the module smaller than the versa key on one side of the wheel would need to be milled off. Even though that is not hard to do, I would rather not make the versa wheel a "custom part" in order for it to fit in the butterfly module.

As for access holes, we will be using retaining rings and right-angle allen keys down there to be able to get in there. Not too big of a deal considering that I don't expect to ever need to do maintenance to a module while still on the robot. The whole module will come out if you remove 2 retaining rings. The only "hard to reach" item is the motors which really isn't too bad

Removing the module requires removing the hex shafts and from dealing with it this year I would try to avoid it at all costs. You don't have time during a competition to do that. During events we had motors come a little loose even with lock tight on the bolts. Someone mentioned thread locking bolts in another thread that I'm probably going to look at for mounting CIMs next year. The other idea that I might look into is doing something like 148 did with Raptor and other robots where they have plates that mount to the CIMs that have easy access fasteners that make swapping motors easy.

Also have you thought about a way to retain the bearing? Our press fits (which I'll admit weren't good to start with) came loose during the season and made maintenance even harder.