Filament pulley for a printerbot
thingiverse
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
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