Simple M3 hex head bolt knob

This is an optional part for the 3dpBurner2 laser cutter/engraver for replacing the fixing carriage bolt by this knob for an easier height adjustment (no allen key needed).

For this part you need an M3x20mm hex head bolt and add a drop of glue to the lid. Check attached PIC.

more info about the laset cutter:
www.3dpburner.com