Inline Extractor Fan for K40 (or other use)

thingiverse

I despised that cumbersome extractor contraption that came with my Chinese K40 laser. It was enormous and obstructed access to the laser tube compartment, so I discarded it and created my own compact inline extractor fan instead. The only parts I salvaged from the original were the motor and the fan; everything else went straight into the trash. Initially, my design consumed 300m of filament due to the excessive support required for some components, but I revised it and now it uses approximately 200m of filament with minimal supports. To prevent waste, each of the two "spouts" is printed in two sections, which must be glued together before attaching them to the main body. After assembling everything, I noticed a few gaps that needed attention. A friend had previously mentioned an unconventional idea: mixing thick ABS slurry and applying it directly to the gaps. I gave it a try, brushing on the mixture, letting it dry (quickly), and reapplying until the gaps were sealed. Designing and printing all components took three days using a 0.6mm nozzle and 0.4mm layer height. Had I used a 0.4mm nozzle, the process would likely have taken twice as long. This print was my largest undertaking to date and presented significant design challenges, but I'm thrilled with the result and, more importantly, it functions flawlessly. If you download this design, please hit the like button. If you decide to print it, I'd love to see your results.