Flex-Tester for temperature calibration

This is V2 of a small rig I designed to test filaments for usability to print enclosures.

The harder it is to break the print along the layers, the closer you are to the optimal temperature and cooling for the filament. So it's a temperature calibration test after all.

Print the bar vertically with 100 % infill and not only perimeters but at least one line of diagonal infill for more rigidity. Use a brim of 10 lines or so. Should take only around 10 minutes to print.

Then insert it into