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Printrbot Dual Extrusion Project: Hardware

by Simulatedbog545 Dec 9, 2017
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Hi, I really like this design and I'd like to set it up on my own PB Simple. I'm not entirely clear on how your extruders are assembles behind the spools. Are there any more pictures showing that?

It will probably make a lot more sense if I explain it. The metal handle is flipped around backwards, and then a small hole just big enough for a zip tie is drilled right on the end. The "motor mount" print slides on past the hole, then a zip tie placed through the hole, then the mount can't fall back off. Once the mount is on, you can slide the motors through the back, and then screw the extruder parts on from the front. Better picture here:


Ok now I get it. One other question. One on of your extruders, the lower half is printed. Obviously this is because the original piece is still on the print arm, mating the hot end to the bowden tube. Is there an STL available for that piece? I don't see it in the list of files on this Thingiverse item.

You can print out Printrbot's alu-extruder found https://www.youmagine.com/designs/printrbot-alu-extruder, or you can buy a metal one from printrbot directly.