About this 3D model
This is the extruder pusher which goes on top of an x-carriage. It was adjusted for Arcol.hu hotend v4, link: http://blog.arcol.hu/?p=1979 And goes on top of the x-carriage, thing:39923: http://www.thingiverse.com/thing:39923 For the full setup, please refer to this detailed article/howto: http://blog.arcol.hu/?p=1991 -- This thing is based on thing:17030, thing:6703. The modifications are really minor , basically size adjustments (holes, nuts, etc). I also added skirt for warpless printing (from ABS), from pla it is not an issue. The license is the same as the ancestors.