New pulley wheel

A project log for Icepick Delta

A highly experimental open-source 3D printer with a rock bottom bill of materials

TTNTTN 12/20/2014 at 19:520 Comments

The original upper pulley wheels where fine, but it was difficult to tension the belt. So I redesigned them:

The new pulley design has a piece in the lower right section for tightening the belt by screwing in the screw:

The upperarms are also less prone to catching on the lower arms when homing from varying positions.