[Stephen Hawes] has been trying fiber lasers to create PCBs ... FR4 uses epoxy which will probably produce some toxic fumes under the laser. We were surprised at how good the boards looked.

Breaking Taps Laser Etching Stencils for Vapor Deposition Posted: February 24, 2025 | Last updated: March 8, 2025 Shadow masks! We're making micro stencils to use in my sputter coater, and talking ...