Lulzbot Mini Filament Mount

The Lulzbot Mini has a rectangular arm for holding the filament spool. The spool drags on the arm and causes a jerky motion of the spool. Others have designed spool holders for the Mini to alleviate this problem. Here is my version. The bolt is a ⅜ x 5” hex bolt. The Mounting bracket replaces the standard Mini arm. The cylinder is two parts glued together.

The friction is very low, so the unit is very smooth in operation. The spool will even roll back when the head rises. The shoulder