Archive for March 11th, 2025

Not what I had planned to work on, but the sci-fi handcuffs kept nagging me. I think I’m going to abandon the traditional ratchet design and go for a “rack and cogwheel” design, similar to what is used by Anhua HC-01 handcuffs. The idea is that the actual ratcheting mechanism is hidden and protected inside the body of the handcuffs, the bracelets interface with an intermediate cogwheel. Theoritically this makes it impossible to shim (more secure).

But in this case, it also looks really good in my opinion: far better than the ratchet teeth. I initially thought of using two gearwheel, but ultimately decided against it because it caused problems with rivet positions and the window for the lock’s colored shutter thing.