Fan Turbine Spinner

prusaprinters

I decided it was time to learn how to use Fusion 360 better so I followed the following video to make a fan blade (which was excellent): https://www.youtube.com/watch?v=EDoPMN2QnhE Once I had the fan created I made a case around it so it could spin. The air inlet outer diameter of the case is 10mm. I printed the three parts together with a brim on at 0.20 layer height in about 50 minutes for all three pieces (I'm sure the case doesn't need a brim if you print it separately. I used support touching buildplate as well for the case inlet tube. The brim on the fan and lid changes the tolerance. I needed to lightly sand the bottom of the fan to thin the brim layer but it only took about 30 to 60 seconds sanding the bottom of the fan on a flat surface and it fits really nicely and spins well. I superglued the lid onto the case which functions to hold the fan into the case also. I did also have to lightly sand the inside circumference of the lid to clean up the inner rim after the brim was removed which freed up the fan to spin freely. This took about 30 seconds of sanding also. Maybe I will work on a different way to attach the lid in the future but superglue works for me at the moment. I imagine a different lid might turn it into a siren... Something to think about. It spins under light air pressure from blowing into the inlet. I also rinsed it under the faucet to remove any grit from sanding and found it spun under a stream of water into the inlet as well. It seems to work well. I think it spins well enough to warrant a new lid design to turn it into a siren. I'm pretty happy with how this part has come out. Step files are included in case you would like to dabble. Enjoy! Category: Toy & Game Accessories