What versions of MMU2 to print
I received my mk3 MMU2 upgrade a week ago. The idler broke during initial filament loading (described in this post) and I have to reprint the idler.
I grabbed the stl's from here and started printing. I realize, however, that the idler I'm printing is different from the one I received with my kit. Specifically, the first layer on the kit idler is solid end to end, where the one I'm printing has breaks across the part to the left/right of the M1 label. That isn't a problem.
The problem is: what other changes might there be? How can I be sure the one I downloaded from that link is compatible with the other kit parts I received? Should I reprint the whole MMU?
It would be nice if PR actually used version numbers, included them on the print, and had documentation on what versions of what parts were compatible.