Summary
- Mike Sklar ran out of the usual brass material needed for making PCB stencils so he used aluminium business card blanks as an alternative.
- The card blanks are an ideal thickness at 0.8 mm, cheap at 15 cents each and flat, unlike rolled materials that can lift when applying paste.
- To cut the aluminium blanks a laser cutter is required and it is possible to fit three small PCB stencils on one card.
- This alternative works well for producing PCBs of a limited size and is another option for considering if brass is not available.
By Lewin Day
Original Article