.:madworm:.'s photos with the keyword: caliper

Apparently I goofed up again. The footprint was a 0603 one, but even for that size it was rather small. The next revision comes with 0805 with wide pads for hand-soldering. So what do you do if the footprint is too small for 0805? You go looking for 0603 LEDs! And if you can't find any of those, you just use 0402 ones ;-) I had to use heavy magnification for this one. The LEDs are so light they easily stick to the tweezers if only the slightest amount of "finger-grease" is on them. It's a good thing I refrained from buying 0201s. They would've pushed me over the edge.

This spring was part of a pogo-pin. It's diameter is about 500µm.

The strip of copper is used to lock the sliding part without scratching it.

If the anti-backlash spring is pretensioned during assembly, there is no backlash.

If the anti-backlash spring is pretensioned during assembly, there is no backlash.

The two small gears 'ride' on the rack gear of the caliper. If assembled correctly there is no backlash.