Improved K40 Laser Blower Wheel (Direct Replacement)
thingiverse
This blower wheel was customized from "LüfterRad für PKW Gebläse Blower Fan Car" by Mcutty to serve as a direct replacement for the K40 Chinese Laser Exhaust blower wheel. It moves significantly more air than the original blower wheel and is a seamless drop-in replacement. The stock exhaust fixture should be sealed against the laser chassis using blue painters tape, self-adhesive weather stripping, or any other suitable sealant. I was in a rush and needed to vent my laser more efficiently, so I made this modification, and it worked perfectly without requiring any additional changes. Depending on your printer model, you may need to chase the shaft housing; if I recall correctly, it was 8mm, but be sure to double-check.
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