I test the heat resistance of different 3D printing materials. I compare "as printed" and annealed condition of PLA, PETG and ABS as well as a high temperature PLA and 3dkTOP. You'll be suprised to see how annealing changes the temperature behavior of PLA!
The tests are comparable to the heat deflection temperature tests from ISO 75 or ASTM D648. I design the jig in Fusion 360, create the toolpaths in the CAM module and CNC the part on my router.

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