Engineering torture piece

prusaprinters

To properly benchmark how well you can print engineering models, I prepared Engineering torture pieces.These models are bricks with metric holes and metric threaded holes. All holes are present in vertical, 45°, and horizontal orientations. There are holes from M2 to M8. The threads already have modeled G6 tolerance, so if you print them accurately, the standard metric screws should fit in smoothly. Besides the holes, there are two types of overhangs – flat ones and circular ones -- under various angles. On the back side, there is a list of narrow openings that you can use to identify how well you can print narrow openings in your model.If you want to learn how to properly and accurately print these models, be sure to read my blog posts:https://blog.honzamrazek.cz/2021/06/improving-surface-finish-of-hollowed-sla-3d-prints-one-aspect-of-blooming/https://blog.honzamrazek.cz/2022/01/prints-not-sticking-to-the-build-plate-layer-separation-rough-surface-on-a-resin-printer-resin-viscosity-the-common-denominator/https://blog.honzamrazek.cz/2022/06/getting-perfectly-crisp-and-dimensionally-accurate-3d-prints-on-a-resin-printer-fighting-resin-shrinkage-and-exposure-bleeding/https://blog.honzamrazek.cz/2022/11/cross-layer-curing-and-layer-bulging-on-resin-printers-enemy-of-overall-dimensional-accuracy-and-printed-threads/