How to make circuits with a Roland CAMM sign cutter

Step 2 Cutting the circuit

You want enough force in your circuit to cut through the copper, but not through the backing. If you use too much force, the traces will also be dragged up with the cutting. I have found that setting the pen force to approximately 45 when the knife is sticking out about 1mm is pretty good, although this varies. While cutting the circuit and watching the vinyl cutter, you can dynamically adjust the pen force with the slider located on the right control panel of the machine. Adjusting the pen force to be lighter for smaller traces and heavier for larger ones tends to work pretty well.