Ready to get down and dirty with some DIY laser engraving? You'll want to give one of these free design tools a try.

Need a simple fab process to go from a humble vector graphic to a final part ... on my own over the last couple years working with laser-cut Delrin (a.k.a Acetal) for functional prototypes.

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 ...