k1 fan draft shield
Description
This is a fan cover that still allows for full power of the exhaust vent fan without pulling cold air directly across the corner of the bed. I am aspiring to have all of my designs held in by small magnets so they can be quickly and easily swapped without any tools. This design has a cone shape within the shroud to accommodate better air flow, however it is tricky to print cleanly due to the steep overhang. The centre of the inner cone has a small rod support built in that will easily break away after printing. I recommend using supports. Print in ABS or a heat resistant material as PLA will soften and deform with high bed temperatures due to its close proximity to the bed. You will need 4x 8mm x 3mm neodymium magnets, which press neatly into the corners. no glue required. For the Aussies, they come in a 10 pack from Bunnings for $7. Very little magnetism is felt to the sides of the print once the magnets are fitted - this should not affect the stepper motor, but if you are worried, don't place all of the magnets in. I will do my best to make a second iteration of this to print improve print quality with the overhang.
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