About this 3D model

A bit frustrated by not being able to print the threads on this nice hand drill: http://www.thingiverse.com/thing:6285 I decided to experiment with my own threads so I can make a derivative. This is a 90° thread in stead of the normal 55-60°. It printed nicely on my Cupcake and the 2 parts fit quite nice together. Update: please follow this link: http://www.thingiverse.com/thing:16682