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Mylar Stencil thickness
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texaspyro:

--- Quote from: Kasper on February 21, 2019, 02:43:27 am ---Ok, thanks, I'll try to find some vellum

--- End quote ---

What you want is fake vellum... vellum paper.  Not the real vellum made of animal skin.   Also you want it to be a color that absorbs your laser light.  For blue lasers red seems to work very well.  I have also had luck with a gold-ish yellow.
texaspyro:
BTW,  the vellum that I have been using is around 0.003 inches thick.
jmelson:

--- Quote from: texaspyro on February 21, 2019, 03:45:05 am ---BTW,  the vellum that I have been using is around 0.003 inches thick.

--- End quote ---
Yup, and after some experimentation a decade ago, I also settled on .003" stencils.  I make them with PCB etching technology our of brass shim stock material.
I get 100 foot rolls of 12" wide shim stock, it is a bit of a special order item, but most machinist supply outfits stock it in 6" width.

Jon
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