I think some of the plates could be 3D printed without compromising the system too much. Others, if made of plastic, would probably be too flimsy and either bend, break, or you would lose way too much precision and get other problems.
Off the top of my head I imagine these would be fine to print:
- Z-axis motor mount, with added gussets
- Peripheral mount plate/Vacuum pump mount plate (we’re making these out of plastic in all kits going forward)
- Cable guides (we have a new plastic version of this legacy part)
- Z-axis hardstops
- Track end and joining plates (only for indoor installations not subject to direct sun)
I wouldn’t recommend printing the cross-slide plate, wheel plates, or gantry corner brackets without adding possibly significant ribs/additional material to the design.