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Parametric Multi-Blade Propellor Generator
by BouncyMonkey
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This is a parametric propellor model generator which can create propellors with multiple blades. It was written in *OpenSCAD 2015* and uses coding that will not work in older versions. The script makes workable propellors but not necessarily the most beautiful ones. To beauty them up you may want to take the generated model into something like *Blender* and with a bit of loop bridging make some nicely merging shapes around the hub.
If you would prefer a folding prop, go here:[Parametric Folding Propellor Generator](https://www.thingiverse.com/thing:3506762)
It (currently) has the **NACA4412 airfoil** as the blade profile. This produces a very thin blade which is getting into the realm of being a bit too bendy. After a bit of testing I may replace this with a thicker airfoil. If you want to use a different airfoil look for the line;
```
Airfoil_points = [[1000,1.3],[950,14.7],
.......,[950,-1.6],[1000,-1.3]];
```
...
If you would prefer a folding prop, go here:[Parametric Folding Propellor Generator](https://www.thingiverse.com/thing:3506762)
It (currently) has the **NACA4412 airfoil** as the blade profile. This produces a very thin blade which is getting into the realm of being a bit too bendy. After a bit of testing I may replace this with a thicker airfoil. If you want to use a different airfoil look for the line;
```
Airfoil_points = [[1000,1.3],[950,14.7],
.......,[950,-1.6],[1000,-1.3]];
```
...
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