What's the right kind of fastener to create small pin joints (2 flat parts about 3-5mm thick each, with 3mm holes)? I need both moving joints and fixed-but-adjustable (ie easy to loosen/reposition/tighten)
Is a simple nut/bolt the best option for fixed?
For moving...what???
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Found the answer, Chicago screws is what I want for the moving joints.
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Replying to @vgr
Second binding screws as useful. They are also called 'chicago screws'. Another useful fastener to look at for applications like this are small clevis and cotter pins.
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You can also sometimes use two rare earth magnets. Have one sticking out a bit and the other sunk a bit. Holds together pretty well in certain uses.
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