Rando Bowden Extruder

prusaprinters

<p>I have been using the minimalistic MK8 on my Replicator for a long time now and it's been perfect so I've converted it into a Bowen extruder. It uses the same bolt pattern for mounting as the airtripper extruder as well as the same bolt retention for the PTFE tubing.</p> <h3> Instructions</h3> <p>Everything is on one build plate and with only 3 printed parts it is about as straight forward as you can get. This extruder is for 1.75mm filament.</p> <p>It will work without the front plate on just fine and it's not really needed but I included it in case you want to close up the front and support the shaft from the motor. The front plate does have a viewing port so you can see the gear and filament.</p> <p>This is part of an ongoing project for me to make a Bowden style conversion package for an MK7/8 or qu-bd extruder. I am currently working on the parts for the hot end conversion.</p> <p>You will need</p> <p>1 - Nema 17 motor (more power is better)<br/> 1 - M4 nut<br/> 1 - PTFE tubing with 4mm outside diameter and 2mm inside<br/> 2 - M6 bolts and nuts for mounting the extruder<br/> 4 - M3 22mm bolts (if not using the cover and 25mm if using the cover.<br/> 1 - Spring 1.25"L by .3"W McMaster #9657K331<br/> 1 - 10mm OD 3mm ID bearing McMaster #7804K128<br/> 1 - M3 10mm flathead<br/> 1- MK7 Drive gear from MBI or Raptor Universal Filament Drive Gear from qu-bd</p> <p>(The file might throw you some errors while slicing it but it still prints just fine)</p> Category: 3D Printer Extruders