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convert an image for silkscreen with gimp, lacquer stencil and pen

Step 6Brightness and contrast

brightness and contrast
Adjust the brightness and contrast until the grays are gone and there are lines
This probably can't be done in one pass, so do what you can, hit ok, do the process again. I think I did it like three or four times until most of the background noise was gone. It still wasn't enough to go straight to a cnc machine, and it was enough to hand cut a stencil, so I printed it at this point.
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