45° angle checker
thingiverse
This is an angler checker. I designed it so I could cut wood, for example, and check if my angle is correct. I made it quite thick so I would be sure it was properly aligned with the face of my object. Printing: I printed it with 10% infill, material doesn't matter as you shouldn't be applying any stress on it, and it doesn't need any specific property different filaments offer.
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