Spline-Based Boomerang in FreeCAD
prusaprinters
<p>This is pretty similar to the <a href="https://www.prusaprinters.org/prints/36803-red-oak-boomerang">Red Oak</a> design, although I made it from scratch. This one was created in <a href="https://freecadweb.org">FreeCAD</a> 0.19, though.</p><p>The model basically consists of two spline loops for the top and bottom faces of the boomerang ("periodic splines", as FreeCAD calls them), and then a loft between those. If you want to play with the shape, just drag around some of the spline points.</p><p>FreeCAD is a little more stubborn than commercial CAD software, but then it's free as in "freedom" as well as free as in "free beer".</p><h3>Print instructions</h3><p><strong>Resolution:</strong><br>0.2 mm</p><p><strong>Infill: </strong><br>25%</p><p><strong>Notes:</strong><br>Use lots of perimeters, top and bottom layers for printing boomerangs. I usually go with 6 at .2 mm layer height.</p><p> </p>
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