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You will need a screw where the thread is M3 and 8mm long and an M3 nuts. You will need to push the wires through the gap in the print and the make sure the thicker part (bottom) is clamping onto the bearing and the slimmer part is…
I designed this awhile ago when I ran out of AA batteries for my clock and had a bunch of AAA batteries laying around. It uses screws as conductors. Originally I only designed it for M3x6mm Countersunk screws but added two more options…
You will need 2x M3x8mm Screw and 2x M3 Heat Set Inserts that are about 4mm long or less. First you need to push the heat set inserts into the bottle handle using a soldering iron, I also added a bit of red thread locker but it might not…
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