Kossel Corner 3030

This part is a proof of concept of a modular 3030 Kossel Corner that uses Nema 17
or Nema 23 Stepper Motors.
I decide to start the dessign as an effort to share the idea of a Koseel Corner that supports both Nema 17 and 23 in the same structure.
Based on the propossal that MicroMake gave us with their molding injection kit,
but modified to use the T-Slot 3030 profile.
The idler pulley was not modeled in this corner set. This Because I plan to move it to a printed support attached to the