Has Anyone Used This Ninja Flex Mod?

Hello I recently contacted robo 3d about using flexible materials like ninjaflex and they provided me with an STL file that I could use to replace my extruder housing. Has anyone used this mod? My R1 will be here Thursday and I can't wait!

Here is the file I was supplied: https://drive.google.com/file/d/0B10g8oo2ZwvrNEFEYUlfd0czVnM/view?usp=sharing

 

Pretty sure that is just modified to allow ptfe tube to run up to the hobbed bolt as close as possible.

 

It isn't all that different from this model, actually; other than this model being for the v6 and I think the OP's model being for the hexagon.

http://www.thingiverse.com/thing:673312

 

I'd go with the one daniel suggested. It's far more printable.

Otherwise just drill out your extruder body to allow for a 4mm ptfe tube to be inserted.