M6 Z Axis Conversion w/ Anti Backlash for Printrbot Simple

This mod will convert your Printrbot Simple from 5/16" ACME threaded rod to M6 threaded rod. You will need the following:
- M6 threaded rod
- 2 x M6 nuts
- 2 x M3 x 16 socket head cap (You might have some extra from your Printrbot Simple kit.)
- A spring that will fit a M6 threaded rod with an OD smaller than a M6 nut.

*Note: Anti Backlash will require some sanding to fit the M6 nut.