The file 'ATOM 80 Degrees Overhang 3D Printer Model' is (STL) file type, size is 60.8KB.
Based on ANDREAS BASTIAN's overhang test but harder, we've added an extra 80 degree overhang.
(http://makezine.com/2014/11/07/how-to-evaluate-the-2015-make-3dp-test-probes/)
Our print video: http://youtu.be/KbHaKYRBMyw
overhang_test1223.STL | 204.6KB |