Routing the Board Outline
Using a much larger cutter, Russ' CNC machine cuts the outline of the PCB. The design leaves a few tiny tabs connecting the board to the outer waste piece, to hold the board in place. Without the tabs, the board will be completely loose at the end of the run, and will jump up and usually either damage itself or break the cutter. They are easily broken off by hand and filed smooth.
Routing the Board Outline
Using a much larger cutter, Russ' CNC machine cuts the outline of the PCB. The design leaves a few tiny tabs connecting the board to the outer waste piece, to hold the board in place. Without the tabs, the board will be completely loose at the end of the run, and will jump up and usually either damage itself or break the cutter. They are easily broken off by hand and filed smooth.