PrintrBot Plus 2.1 M8 Z-Nut Adapter

thingiverse

I recently received a PrintrBot Plus v2.1 and have changed the z-axis to use a M8 threaded rod instead of the ACME rod that it comes with. This allows it to use the same steps-per-mm as my PrintrBot Jr v1 which has been running an M8 rod for a year. However, the spot that captures the nut and stops it from rotating, effectively creating the Z-axis, isn't small enough to stop an M8 nut. That's where these objects come in. They are designed to fit in place of the original ACME nut with a cutout for a M8 nut to sit. I've put these on my printrbot and have printed two very detailed objects without issue. Instructions You'll want to print these with the spot for the nut facing up but you'll install them the other direction; with the nut facing down. The left/right designations are from your point of view, when you're looking at the printer's front. The right side has a slightly smaller area to put the adapter in.