Printerbot Jr. V2 DUAL Bowden adapter plate V1.0 (EXPERIMENTAL)

thingiverse

Desperate for a Bowden adapter for the Jr. V2, I discovered that the Printrbot community mainly focuses on the Plus and Simple models. Undeterred, I researched and designed my own dual adapter. However, it remains untested as I await the tube and other hardware. If you encounter any issues, please let me know. The adapter is intended to work with this cable coupling: [http://www.thingiverse.com/thing:1899]. Read the instructions carefully to learn how to resize it. For positioning, one extruder is 10mm towards the rear of the printer from the original spot, while the other is 20mm out front. They should be 30mm apart. Regarding hole sizes, I assumed M3 bolts and made tight holes 2.3mm and loose ones 2.5mm, but feel free to suggest improvements. Next up: fan adapters for 40mm and 60mm fans! To create a custom coupling, download the ".scad" file from [http://www.thingiverse.com/thing:1899]. OpenJSCAD ([http://openjscad.org/](http://openjscad.org/)) is your tool to use it. Adjust the bolt_distance value to 24 and bolt_dia to 3.2, as well as any other necessary parameters. Generate an STL file for printing. Print with multiple vertical layers, a high infill rate (>0.4), and be aware of heat exposure. You'll also need another motor in addition to the one provided in [http://printrbot.com/shop/printrbot-extrudrboard/](http://printrbot.com/shop/printrbot-extrudrboard/) for this setup to work on your Printrbot Jr. V2.