printrite J-head(e3dv5) extruder

this design allows for the direct replacement of the standard printrite (direct drive) block extruder with the more up to date and flexible J-head variety of extruders.

the lower carriage section is not required for the change over to the j-head as the two part upper extruder mount will fit straight onto the printrite carriage without modification to the carriage itself, the carriage design addition simply allows more space around the j-head hot-end and also offers the same benefits if the us