Thingiverse
Parabolic Reflector (Customizable)
by firstbullet
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User may specify mirror width, focal length, minimum thickness, and complexity (resolution of the part). Uses this formula: Y = X^2/4P.
Rendered examples are 100mm diameter with a focal point of 75mm.
12/16/15 - I discovered OpenSCAD does not seem to like compiling this design at higher resolutions. The problem stems from too many vertices meeting in the middle making it an invalid 2-manifold object. I will probably wind up making a very tiny hole in the middle to fix this and adding the
Rendered examples are 100mm diameter with a focal point of 75mm.
12/16/15 - I discovered OpenSCAD does not seem to like compiling this design at higher resolutions. The problem stems from too many vertices meeting in the middle making it an invalid 2-manifold object. I will probably wind up making a very tiny hole in the middle to fix this and adding the
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