This is a lock designed link your device to a fixed point (A lock).
I have made some changes for CNC frendly fabrication, so it took a while uploading.
I also changed the name to E-Lock, since Kensington will start sideeyeing me.
(Yes, I know what I said. I’ll take this down if nobody wants to see it…)
Yes.
With PLA, you can submerge your part with sand and use molten metal. (PLA Casting)
3D printer can also print metals. You just need a special nozzle and metal fillament.