Protomaker Complete (Reprap Mendel variant)

thingiverse

Protomaker, I upgraded because I wanted better performance and the ability to print with ninja flex and filaflex without any issues (Success!). Many of these parts have gone through numerous tests and revisions, and these are the final versions I've used as of May 17, 2017. I designed my own assembly based on my collection of 2mmx10mm plastic screws, and for some reason I only had 5 mm 3m screws for the stepper motors. I created a plug to hold the hot end in place, allowing me to remove and replace it without taking off the extruder hotend. The assembly process is pretty straightforward, but instructions are always welcome. As with any reprap mendel, you'll need threaded rods, lead screw with flanged nut, smooth rods, nuts, bolts, tie wraps, motors, 5/8mm couplers, endstops 608 bearings, linear bearings, wires, arduino and ramps and other necessary components or equivalents, hot end and fans. The extruder block and extruder block 2 are the same design, just flipped 90 degrees. The same applies to the extruder plug, which is for two different size hot end heat sink fittings I have. For the X and Y end stops, I'm using the mech endstop v1.2, with the button desoldered and screwed into place, along with soldered extension wires to the board. The Y axis endstop has been sanded down to fit under the build plate with clearance. The X axis motor mount features mounting holes for the pcb and button. Every bolt requires a washer, including the z axis mount against the top vertex (which should be washer-bolt-washer in order to align with the z bracket at the bottom and x axis mounts). If you'd like more details, I could provide them. However, once you have all the pieces printed, it kind of builds itself. Let me know if you feel otherwise. The extruder needs a PTFE 4mm OD tube chopped to fit snugly between the hobbed bolt and bearing for the filaflex and ninjaflex to travel straight and not get kinked. Note that the X Axis motor mount has very tight holes, so cut out the support and use a vice to squeeze in the lead screw bolt. Also, ream out the holes for the smooth rods and gently hammer them in. The X axis idler mount features looser holes, making it easier to adjust one side.