2026-02-01 (Su) HandcuffKey24 Two-part design

I tried printing a whistle on its small end and at an angle with supports, but each print failed. I considered how to make a whistle that printed flat and a key that printed vertically, and came up with the idea of printing the components separately, then combining them. I could not edit the whistle I was using in my examples, so I made my own. To create smooth lines and intricate shapes, I drafted a multi-layer model in QCAD. I imported the drawing into OpenSCAD and extruded the layers individually. One layer was the sensitive inner workings. Another layer was the outline, which became the top and bottom. The final layer was an insert that I would rotate and add a key. After printing, I can slot the key component into the whistle body and glue it if necessary. The first couple of printings failed.

2D and 3D views

The rest of the posts for this project have been arranged by date.
GitHub repo for HandcuffKey24.

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2026-01-29