Anycubic wedge jack

Fits the Anycubic I3 Mega

Hardware required
1) 8-32 x 1.75" long machine screw (phillips head)
1) 8-32 hex nut
1) 8-32 nylock nut

Height adjust 14mm to 19.8mm

Tried other posted designs and found it difficult to get their jacks to collapse once expanded,i.e. while turning the screw to attempt to collapse, the wedges would remain in their jammed position and the screw would unscrew itself out of the frame.

So I designed this jack which traps the screw to the frame with a nylock nut and traps the bottom wedge to the screw in both the push and pull directions.