The adjustment knob on our Powermatic Model 60 jack was broken. I printed this to replace it. It can be pressed onto the brass ring on the jack shaft. You need to drill a hole and secure it to the metal with screws, so the brass ring won't rotate. The original handle had a positioning screw. The brass part on mine had worn out, so I had to drill a new hole and thread it.

• Print using a support structure
• First, print the external walls
• 20% filling rate to prevent cracks from appearing when it is pressed against the brass ring
• Material: PLA