There is another trick to make cutting solder stencils procedure. It utilizes a laser cutter to cut Mylar sheets into stencils. It appears to be employing EagleCAD and Express PCB. The initial phase is to send out the top and bottom cream layers from CAD programming.
The subsequent stage is to recoil the size of the solder pads only a bit. This is to make up for the unavoidable liquefying caused by the warmth from the laser. Without this progression, the residences will probably wind up a bit too big.
It is to cut two bits of 7mil Mylar boards in the meantime. However, the laser must be aligned to carve entirely through the top sheet, just partway into the base piece. The laser winds up somewhat, softening the edges of the little cut-out squares. These then stall out to the bottom Mylar sheet. When you are done with the cutting, you can pull the leaves apart and end up with one impeccable solder stencil and one scrap piece.
