Speed square holster
thingiverse
Make your own speed square holster just like Tom Silva's from Ask This Old House. It perfectly fits my Stanley Speed Square and hangs over the top by about a half inch, just as Tom's does. The belt clip is found in the instructions, which has a recess built-in to accommodate it. I printed mine at .20mm layer height, using two shells with 16% infill. Make sure to print with supports but no raft, with the belt clip indentation facing upwards. Before tightening the screw, pre-drill the hole for the belt clip because the infill will tend to guide the screw crookedly. The model I used doesn't have the "Ask This Old House" marking on it. To attach the belt clip, super-glue it to the holster and use a #6x1" flat head wood screw with some glue around its threads.
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