Each part was modeled separately on the computer:
Handle with 45 degree bend.
Block and pivot point for connecting the handle with the arrow puller body.
Push rod that applies forces to the surface of the target.
Linkage connecting the handle and the arrow puller body.
Block with a slot that keeps the push rod aligned during use.
(All pieces bolt onto a 3/4 inch piece of aluminum tubing with 1/16 inch wall thickness)