Creality Ender 3 Bowden Holder (my overreaction to slippage)

thingiverse

I haven't printed this yet, it does what my makeshift mid-print patch job does to keep the bowden retained in the extruder. This might work as a temporary fix while you wait on a shipment of good couplers, it might be crap. Who knows? Looks like it'll work tho. Required: three zip ties, the size that will go through the slots. Two go around the barrel of the device, tighten until the bowden doesn't slip in the jaws. The third goes around the extruder stepper and through the holes in the backplate to hold it on. There's a rounded spacer integrated into the design at the bottom of the backplate, more tension on the zip tie=more "pull" toward the extruder. There should be enough flex in the pieces that you can tightly slip the bowden through the slot in the top of the barrel, so you shouldn't have to undo anything and you could potentially add this mid-print if you have to.