The chain link consists of a series of wires that are bent and woven in a zigzag pattern. The zigzag bends are made by wrapping the wire around a rotating flat plate in a stationary tube with a spiral slot in the side to keep the bend spacing constant. [Levsha]The version is about 1/10 of the real version and only does the bending and winding parts. The operator is responsible for connecting the bent wire. All components have been machined on a lathe and CNC router and beautifully finished and assembled on a wood base. The hardest part was the pipe with the spiral slot, which took a few tries to get right. [Levsha] Initially an attempt was made to use steel wire, but it was too stiff and caused the winding mechanism to jam. 0.4mm copper wire turned out to be the best choice.

While there is no practical use to this device that we can see, the craftsmanship is excellent, and it is one of those videos that reminds us how much we want some machine tools.

The attention to detail is what makes videos like this so enjoyable. We saw a couple of other projects like this, like a nice lathe or a pneumatically powered drone that can’t fly.

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