Hexagon Bowden Mount, Printrbot Simple

Bowden mount for hexagon with 20mm fan mount to go with the 300mm no sag mod with and without z-probe mount

Didnt think the main screws through very well but for the moment zipties are working fine,

TODO:   - decent screw lengths for clamp  

20150201 - Added 20150131 "Hexagon Bowden Clamp 18mm Probe"