Printrbot Reset Revised

The original .STL files did not slice properly for me. I repaired them with nettfab, then decided to tweak the design a bit. Not sure my additions are all that wonderful but I like my printer to be a bit "fancier" than the original design.

You must have an add-on tower assembly - I have the XL tower and this fits perfectly.

I did find an interesting issue that I caused when I decided to mount the printrboard on my Simple on standoffs rather than zip tied to the case. At a certain z heig