Tool for leveling you print bed on a CTC and similar printers. This is inspired by thing 30080 and thing 23257, but these did not fit the magnets I had at hand and only one of them had the source files needed to modify it - and I did not have access to that tool. So here is a version with the OpenJSCAD source file, so you can change it to fit your printer and the magnets you have at hand.
Added the ability to set the thickness of the bar to allow calipers with different pin-lengths.
I printed this in ABS and simply used my normal setting for the ABS used. So if you already has a set of settings that work for you, just use these - there are no special requirements for this simple rig.
Designed using OpenJSCAD
I use Notepad++ to edit the file and OpenJSCAD for redering and to generate the STL.
If you want to modify the jig, just drop the file onto the field on https://openjscad.org/ and change the relevant constants at the top of the file:
ROD_DIA is the diameter of the X-axis rods on you printer (default 8mm)
ROD_DIST is the distance between the two rods (default 60mm)
CALIPER_DIA is the diameter of the caliper tube (default 8mm + 0.3mm tolerance)
MAG_DIA is the magnet diameter (default 12mm + 0.5 tolerance)
MAG_H is the height or thickness of the magnet (default 4mm)
BAR_H is the height of the bar holding the caliper