These files are created using current settings in the generator. + Hirth-joint-sample_D20x8_T16x60.step + Hirth-joint-sample_D20x8_T16x60.stl + Hirth-joint-sample_D20x8_T16x60.png
This is the main gem. The spreadsheet contains comments and values to generate a wide variety of Hirth joint geometries.