Four sided 70-80° overhang test with 30mm bridging.

thingiverse

I made this test to map the cooling performance of my Cobra cooler ( http://www.thingiverse.com/thing:1090433 ). It tests the ability to cool overhangs from four sides. It also has a sensible 30 mm square bridging test, which corresponds to the kind of bridging you might encounter on real prints. Optimizing your printer for 100+ mm bridging is silly in my opinion because it compromises performance in real life scenarios. Print Settings Rafts: No Supports: No Resolution: 0.2 layer 0.4 nozzle Infill: 15 Notes: I print my tests at 50 mm/s with 50% outline speed and three perimeters and top/bottom layers.