Parametric fresnel lens (Failed) 3d model
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Parametric fresnel lens (Failed)

Parametric fresnel lens (Failed)

by GrabCAD
Last crawled date: 1 year, 10 months ago
Still decided to upload when it's total failure.
For easier modeling and printing without support to get a flat surface, took a special case for lens when R2=infinitive.
Ref: http://www.livephysics.com/tools/optics-tools/focal-length-thin-lens/

As no proper condition implemented, model fails when tuning parameter outside a certain range. Changing fold numbers will need to hand-retrace the outline and redo the revolve action.

If anyone have suggestions or tutorial on how to do parametric non-repetitive feature correctly please leave comments, thanks in advance.

And Planning to do a SCAD/JSCAD version that can solve this issue as well as asserting the correctness of parameter settings.

Last but not least, FDM printing with 100% infill clear PLA seems totally unusable (as air gets in), if anyone have tried SLA technology or other(eg. milling/lathing clear plastic) that works, please also let me know.

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