Bowden coupling for Geeetech A10/A10M
Description
There are number of remixes of original (I believe) work https://www.thingiverse.com/thing:1993384 , but most of them are for metric thread, while Geeetech A10M I have uses 1/8" thread. Also, if screwed directly into feeder, they would unscrew every time when a tube is detached (since it's the same rotational force. So I've created this remix, which uses the original metal coupler that holds the base and everything is attached securely without any glue. Note how the base sits in the indent on the feeder, which prevents it from rotating. To install, first, completely remove the plastic insert from the original coupler. Then put the 3d-printed "base" and screw in the metal coupler body with a small wrench. Now you have the base well attached to the feeder and can add the remaining parts. **UPDATE**: *After using this coupler for a while* I've found couple of problems. First, if the nut doesn't squeeze the tube very tight, it may slip out, which will, of course, ruin the print. And it you tighten it hard, it'll be fine for a few days or weeks, but over time, a depression will form on the tube, its internal diameter decrease and filament will start getting more and more resistance while moving. This will gradually increase stringing and cause underextrusion. Eventually the coupler lips may snap if your extruder is good. Or just underextrusion will be worse and worse until you realize something is not right and start looking for a problem. Chopping off a centimeter of the bowden tube fixes the problem for a few weeks.
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