He uses a laser cutter to cut Mylar sheets into stencils. [Juan] appears to be using EagleCAD and Express PCB. Both tools are available for free to hobbyists. The first step in the process is to ...

By cutting the solder mask layer into a business card with the laser cutter, it can be held on top of a PCB and then used as a stencil to add the solder paste more easily than could otherwise be done.

--(BUSINESS WIRE)--Laser ... of PCB depaneling due to its non-contact nature, narrow kerf width, and precision. This method eliminates part-induced stress and the need for consumables like cutting ...