Motor to lego technic adapter

Update - 19th Sept - made this into a customizer.

An adapter to connect a small DC motor (found in many toys or cheaply available) with a 2mm diameter shaft to a lego technic 'x'.

I've found that a 2.2mm hole provides a good tight fit, this may vary with different printers and materials, so the scad file is there for you to experiment with. You should also be easily able to vary the length of the shaft if you need to.

Printing in PLA at 100% fill has given me consistent results.