3D Printed Angle Gauge

A conventional angle gauge (such as the one above) can’t measure the angle of an object with a sharp corner, because the hub of the gauge is the pin about which it rotates.

New 3D printed angle gauge – This design gets round that problem by having a rotating element that is constrained by its outer edge.

To make it, download the files from our GitHub, print the two STL files. Also print the file protractor.pdf on a – well – on a printer.

Cut round the outside of the protractor print carefully with scissors and glue it in the recess of the base part. Take care to align the 0-180 line at the centre with the cross bar of the print. The best glue to use is mounting tack that comes in a spray can.

When the glue is set, use a sharp blade to cut the inner part of the paper away.

The FreeCAD design is in in the Github repository – angle-gauge.fcstd if you want to change it (for example by making the diameter bigger or smaller).

Thanks to the most useful website with all sorts of printable scales at: BlockLayer.com . If you make this, slip them a quid or two.