The Screwed Up 74mm Grinder

This grinder was designed and made for a couple of reasons:
1. I had just received my first purchase of m3 threaded inserts and wanted to give them a try.
2. The herb that I just received was quite damp and did not play well with the toothless grinders that I had.

**Things of note**
If you do not wish to use m3 threaded inserts I have included copies of the files that do not require them.

If you have created http://www.thingiverse.com/thing:2138128 you will already have a compatible Tra