tesla turbine style fan blade.
Description
a custom fanblade in the style of a tesla turbine. honestly this was more just me wasting time and learning openscad more than a real contender for the fan blade competition. I feel like openscad needs a better way to sweep and make helices.cause as jank as this linear_extrude() is, the only alternative I can think of is using polyhedron() edit: fixed blade thickness bug. edit:fixed critical hub height dimension error. edit:added housing for outer diameter for when the fan height exceeds fan housing height. I included various renders to show what designs are possible by changing variables in the .scad file. [view in cadhub](https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/angryseptagon/random_openscad_creations_I_made/blob/main/teslafan_mod/single_blade_fanv3.scad)
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