Joe has been scheming to mass produce our 140 blocks (complete with 240 sheaves) of various sizes. Below, we have a 12″ single block–2″ in our scale–and a sheave. The side view shows the concave hollow for the wire at the top and convex stripper shape at the bottom to stop the wire from going around the sheave twice. The hardest part of this process will probably be forming straps to fit thimbles, straps, and shackles.