Chalk Line
thingiverse
Chalk line. Install some natural fiber twine or heavy gauge string. Fill with chalk or some pulverized pigment. I used some roman black earth pigment I had. Have a look at the openSCAD file if you want to customize it. I printed with PETG but anything will work. A bit of super glue is required to secure the two halves of the case after its all said and done. The pulley was a bit tricky to print the upper half, could adjust the slope of the cylinders to make this easier if you are having issue. I glued the handle on the top and screwed it as well.
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