Ball joint guide

A simply ball joint for guide filament into extruder. Have 0,5 of theoric slack, really arround a couple of tenths with my printer specifications.

Can use DIN-912 M3x12 screws and T-nut for better fixation or put in without it, have strength enough for the work.

Made for a 20x20 Bosch profile.

Edit 05/01/18: Some configuration added, 90º joint guide rotation, for another type of printer configuration, and lso added this design without holes.