Bolt with Rotation Indicator for Articulating Raspberry Pi Camera Mount
Description
https://www.thingiverse.com/thing:3114849 has thumb bolts and nuts to fasten each link in the articulating Raspberry Pi mount. The female side of the links have a circle cut out on one side and a hexagon cut out on the other. This is so the nut (which has a hexagon around the thread) will lock into the link, while the bolt rotates free. The design works brilliantly, except it's impossible to see from the back of the nut/bolt which is which, because the thumb screw treads for each are identical. This is frustrating when the bolts are really tight, because it's hard to tell if it's not moving because you're trying to rotate the nut instead. I remixed the bolt to cut out some triangles in a circular pattern out of the back of the nut. This way you can tell by looking from the outside whether it's the nut or the bolt when the link is connected to another link.
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