Combind C20 Replacement Handle
thingiverse
We have a Combind C20 book binding machine at work that uses those plastic comb rings. It notches rectanglular holes in the side of all your sheets then you feed them into the combs. The handle on the comb opener broke off a long time ago and we have been using some small vice grips, but I finally got around to designing a replacement handle. You will need a 10/24 set screw for best results, 3/8 long or less is probably fine. Edit: I made a revised version with a longer handle and also angled the square drive to maximize the leverage! Edit: Remade again, adjusted the length a bit more and then shifted the square offset further. This is now a perfect fit for the machine. Removed old versions.
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