MT (Morse Taper) Gauges

prusaprinters

<p>I picked up a piece of equipment which I suspected had an internal Morse Taper of MT1 (or maybe MT0), but I didn't have any corresponding tooling in my shop to verify the size. So I made these gauges to verify the size before I spend money on tooling to fit. Of course these are not precision gauges, but they are good enough to verify that a given taper is a Morse Taper, and to identify the taper size.</p><p>The gauges can be printed in either “outer” (use inside of the gauge to check the outside of a male Morse Taper), or “inner” (use the gauge to check the inside of a female Morse Taper). This might seem a little bit confusing, but it is obvious in use.&nbsp;</p><p>For the outer gauges, only 1 inch (25mm) sections are printed to save on print time and filament use.</p><p>The inner gauges have a hole in one end that can be tapped for to use a screw as a “handle”. Screw sizes for &nbsp;gauges 0 and 1 are #10-24 (or M5-0.8); for the other sizes use 1/4-"20 (M6-1).</p><p>Note : I did not print out the Morse Taper sizes 4 - 7 as I did not need those sizes. In addition, the gauges for sizes 6 and 7 have been truncated to 5" (127mm) to reduce print time and filament usage.</p><p>All sizes were made based on information for Morse Taper shank sizes from <i>Machinery's Handbook.</i></p><h4>Print Instructions</h4><p>Print in PETG using the 3mf or gcode files provided. In general :</p><ul><li>0.2mm layer height</li><li>3 perimeters</li><li>0% infill (sizes 0 - 3)</li><li>5% rectilinear infill (sizes 4 - 7)</li></ul><h4>CAD</h4><p>The OnShape 3D CAD files are here :</p><p><a href="https://cad.onshape.com/documents/e48e0ab361fc41806ebe373a/w/f0c6489e75673c64ab633e7f/e/7e489357ff14991810f217c4">https://cad.onshape.com/documents/e48e0ab361fc41806ebe373a/w/f0c6489e75673c64ab633e7f/e/7e489357ff14991810f217c4</a></p><p>&nbsp;</p>