My first attempt at making a challenge lock!
After some Home Depot shopping sprees, I finally made my first challenge lock! It's a five pin KiK cylinder with pretty good tolerances. Core is a mix of threaded chambers (1, 3, and 4), as well as counter-milled chambers (2, 5). Most of the pins are a combination between serrated and serrated spools. However, the last pin is a drunken spool—the drunken part of which slides into the counter-milled chamber. Would definitely be open to feedback, or other ideas on how to improve it!
Cheers!
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GizmoRay