Dual 40mm fan duct
thingiverse
This design was originally created by Marteinnsig and I needed to add a second part cooling fan to it. Using Tinkercad, I added a secondary fan duct that fits perfectly with the Micro Swiss hot end on my CR-20. Update: Since using the Micro Swiss hot end, I've noticed that the leftmost fan duct is quite close to the stepper housing, causing clearance issues. Therefore, printable spacers are required until I redesign the fan duct. -V1.2 Dual Fan Duct with added space to clear the stepper. -Added a spacer for V1 Dual Fan Duct to save having to re-print the entire assembly. Printing at 100% infill only adds 2gr X2 25mm M3 screws required.
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