About this 3D model

Utility Cabinet Meter Square Keys Print at 80% infill for strength. The square section has curved edges. The first print of a square size of 6.5mm was not very sucessfull, I think mainly because I had only 30% infill set which made it too weak for the 7.9mm* square hole in my meter cupboard. A 7.02mm size at 80% infill works very well.. I think a 6.5mm square with an 80% infill would have worked if it as used. Most likely classed as an 8mm square hole.Video of the Square Keyhttps://www.youtube.com/watch?v=la0AX9_vZzI Also see Triangle meter cabinet keys :- Meter Cupboard Key Triangle Longhttps://www.thingiverse.com/thing:2515653 Remix of 10 mm Triangle Key by alga42https://www.thingiverse.com/thing:64534 Others seeElectrical Panel Key for Key Ringhttps://www.thingiverse.com/thing:2859544/