The file 'CenterGaugeRev2 3D Printer Model' is (stl) file type, size is 26.1MB.
Per discussion at original page, I inverted the ruling lines so the gauge is now a single piece that can be printed without overhang problems.
Update: I added a lower-poly version which should produce a part of almost the same surface quality.
Update 5 May 2022: per reports from makers (see comments), I used Meshmixer to "true-up" the diagonal edge so that it properly crosses the center of a circular object. Use Rev3 now.
CentergaugeRev3.stl | 78.6MB | |
CenterGaugeRev3loPoly.stl | 19.7MB |