Summary

A smoothe Z rod mounted filament pully for the printerbot

Instructions

this pully will spin freely around the smoothe z rod and contains a bearing to minimise friction in filament flow

you will need an M8 bolt or piece of M8 threaded bar 40mm in length.
and two M8 nuts

lastly you will need 1 609Z bearing

hope you find this useful

place the pulley ring over the bearing while print is still warm as it will grip when it cools if its cold just pop it onto your heat bed for a few mins first

then mount the bearing in the slot using the m8 bolt/bar and nuts

this is version 2 it has a better pulley ring and so stops filament slipping sideways

Filament pulley for a printerbot