Original Prusa i3 Mk3 Extruder Body Rework

thingiverse

Update 01-Sept-2018 - New version R3 parts added. The Extruder Body for the Original Prusa i3 Mk3 seems to cause difficulty for users when they need to remove the E3D v6 hotend for service or to remove a blockage. Because of the stepped design of the extruder body the neck of the v6 heatsink fits in to the body fairly easily but is very hard to remove without considerable force. Close examination of the extruder body drawing revealed a possible rework to allow easy removal and replacement of the hotend at any time without changing the overall shape, size, dimensions or hardware of the extruder. Working from the Original Prusa drawing I sliced the extruder body into two pieces to free up the hotend fitting location for easy access. No extra fixings or parts are required, all you need to do is to print the two new parts exactly as specified. They are assembled using the existing three extruder motor screws to clamp the sections together to form exactly the same part as the original extruder body. Simply replace the existing Prusa Mk3 Extruder Body with the two parts of my rework. Both parts must be printed as shown with the parameters below to resolve important details. Extruder Body R2 - A is the back part. Print this from black PETG @ 0.20, 20% infill, no raft or supports. Extruder Body R2 - B is the front upper part. (Note this has been flipped over for printing and must be printed at 0.15 with support only on build plate, to preserve detail like the PTFE tube location.) Print this from black PETG @ 0.15, 20% infill, no raft, support yes on build plate