Filament Dry Box Tube Feeder
thingiverse
I'm designing a filament feeder system for my dry box, and I'm using these pneumatic connectors: https://www.amazon.com/Witbot-Straight-Pneumatic-Connector-Long-Distance/dp/B01KHN1HWY. The feeder was created in Tinkercad with limited resolution due to mesh triangles along curves, but the holder has a good design. When not in use, filament tubes fit into the holder and should allow enough filament to remain outside for easy pulling later. This system can be used both with or without the backing plates inside the box, although they do help keep everything flat against the box walls. I'm attaching it using M3x16mm screws and nyloc nuts. The pneumatic connectors screw directly into the parts. This design works best with 4mm OD PTFE tubes.
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