Bottle Jack Valve Knob

thingiverse

Simple and compact knob that has small nodules to hold it in place. I use this in my folding engine crane's 8 ton long ram jack. With a knob it's very easy to control the lowering speed of the boom - which is needed especially on heavy loads. Leave a comment if you need modified version. Print Settings Rafts: No Supports: No Resolution: 0.1 - 0.25 mm layer height Infill: 30% Notes: Test printed with ABS, 0.25mm layer height, 30% honeycomb infill.