Wanhou Duplicator i3 M3 thumbscrew

The grip on these wraps around the top and bottom and works really well.

Also included is a spring spacer to keep the springs from bending side to side.

I used a small washer between the thumbscrew and the lower bed to keep it moving smoothly.

This was designed for a Balco printer which is a rebranded Wanhou Duplicator i3 v2.1 sold in Australia by Kogan. It should work for other iterations of the duplicator.