MK8 Dual Extruder cover
thingiverse
This is a cover for the cheap MK8 dual extruder assemblies that you can find on geeetech or all over ebay. I like these extruders because they are cheap ($60-$90 for a dual assembly), but especially because they use cheap 6mm nozzles (which you can get on ebay or banggood for less than $0.50 apiece, compared to the $12 Monoprice or Flashforge want for replacements). As a result you never have to clean out a nozzle again (if it clogs I just toss it and put in a new one). The design includes a socket for an M3 screw that you can use to affix the the fan and stepper wires to. STL came out with the model on its side, but of course you'll want to print it flat.
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