Modified Prusa I3 single motor Z mod complete by Unknown

Last crawled date: 3 years, 1 month ago

This is a mod to use a single motor for Z to prevent the X axis from becoming untrammed due to normal 2 motor systems becoming out of sync. It uses Cupcake Z parts.
Specifically:
2 each 5mm bore GT2 2mm pitch 36t pulleys (SDP-SI)
4 each 624ZZ bearings as idlers (Ultimachine)
1 each Cupcake Z belt GT2 2mm pitch, 6mm wide, 424 teeth (SDP-SI)
3 each 5x11x4mm flanged bearings for the 5mm Z screws (VXB)
1 each 5mm to 5mm flex coupler (Adafruit)
8 each 4mm bore fender washers (Ultimachine)
8 each regular M4 washers (Ultimachine)
4 each M4 x40mm capscrews (Ultimachine)
4 each M8 nuts used for spacers (not shown in picture, Ultimachine)
2 each M5 standard washers (between pulleys and top bearings (Ultimachine)
4 each M4 nylock nuts (Ultimachine)
Also, the stock Z threaded rod would have been
5 mm for Z- Axis: 2 x 12"
However, they should now be around 13 inches for the motor side and 15 inches on the right side since we don't use a motor and coupler so it needs to go all the way down into the lower bearing support on that side. The square "fake" motor plate is what also holds the right Z smooth rod. but the cutout allows for locknuts to rotate with the 5mm threaded shaft.