Dummy radiator valve

This is a fake radiator valve that will get an eqiva smart thermostat through its calibration and self-test routine to be able to test programming it without being tied to a radiator.

It is not even remotely sensitive to print settings; everything is well-supported and chonky enough to have no problems printing on even the cheapest printer.

After printing,

If you get an F2 error from the calibration routine, screw the bolt in further; if you get an F3 error, unscrew it a bit.

The slots are sized to fit the Sencys M3x10 phillips-head screws I had lying around, but they should be easy to adjust to fit other sizes of screw.