drill powered boat propeller

thingiverse

Print the design and attach it to an 8mm or 5/16in threaded rod secured by two nuts. 3D printed in PLA with a 50% infill density and a layer thickness of 0.3 mm. Created using SketchUp, the original design can be seen in the accompanying video. In the demonstration, I utilize two propellers; however, one is typically sufficient for operation.