[Modified for LU8MM] Very small E3D mount (J-head mount?) for the Ultimaker

Modified in OpenScad for 8mm rod and LU8MM bearings. Not tried this print jet, but needed a E3D bowden mount for my DIY project ("SteamMaker").

Update 20140506: I printed the parts yesterday with PLA, ok functional part, but E3D hotend was blocking the rod by about 1-2mm, so this is now fixed!

Original part.
http://www.thingiverse.com/thing:159987