M18 Leaf Blower "Supercharger"
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Bernoulli's principal leaf blower attachment, intended to increase flow
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The idea here is that the high velocity, low pressure air sucks more air in the side, thereby increasing the CFM of the blower. Honestly, I don't know how well it works as I have no objective way to measure, but it does seem to pull air in the sides, so it must work at least a little?
This is my 3rd iteration; however it is admittedly still very crude (my tinkercad skills are mediocre at best) and you can very clearly see artifacts of how I designed it. This model will print without supports (I do slow it down when its around layer 440 at .24mm layers to aid in the 8 overhangs coming together nicely. I added a couple of structural ribs to the model to make it a bit more durable, as I've broken a couple copies of this already while developing it. It printed much nicer in the ASA-CF I have than regular ASA, not really sure why, but the part is substantially stronger than some of my prototypes.