90mm Ducted Fan

thingiverse

This is a simple Ducted Fan. While it probably isn't the most efficient design out there, it does produce a good bit of thrust while easily handling RPMs of around 10,000. I can't guarantee that it won't explode though, as it depenends on your printers accuracy and the general strength of the print. Everything can be printed without supports, which will improve the quality of the blades. Requirements: - 36mm Brushed DC Motor (keep in mind that it's a tight pressure fit and might require some sanding) - 4x M3 Screw (min 19mm) - 4x M3 Square Nut