Hello. I’ve read through lots (all?) of the mylar tip threads, and I can’t get the glowforge to make silkscreen-style engraves the same as others. I wonder if Glowforge settings have changed since those old threads–my results are way off compared to where others have it working.
I’m trying to create silkscreen-style holes in a 10 mil mylar sheet by engraving a raster image. This is my material source: https://www.stencilrevolution.com/products/blank-stencil-material
I’m able to gently etch the surface or blow through it with warping and melting but there seems to be no clean way to hit the middle.
Based on all the threads, it seems like people succeed with the glowforge power at a medium or low setting and the speed at medium or high. I can only clear through the sheet at all if I’m running on full power. And even at full speed, it warps and melts areas together versus distinctly cutting edges (pictured).
Here’s the example of it gently etching the surface at most/any settings below full power, high speed. (Phone camera flash helps show some parts and blows out others… but it looks good/correct in person.)
I’ve been setting the focus height at .01 inches. I tried it with and without a piece of plywood backing (changed that number after measuring the plywood). I’m set to engrave and convert to dots at 75 lines per inch.
A year or more ago, I tried this process just with a sheet of paper and got great results (an old test area pictured).
Please let me know if you have any tips or feedback on how to retry this… or could something have changed with the Glowforge in the time that has passed? I don’t use it a lot but cut proofgrade just before all of this, and that worked well/normally.