Mikey Sklar & Wendy Tremayne
CNC : Ideal Trace Cutter
Thus far I have tried three different bits on my CNC to mill circuit boards. My favorite bit for cutting traces so far is a inexpensive $2.40 fish tail router that I've been purchasing through Drill Bit City. It's a little wide at .8mm ( 31.5 mils ) diameter for surface mount, but nice for quick through hole test boards. Previously I'd been experimenting with V shaped carving bits so that I could do very fine SMT work, but they needed to be run so slowly (avoid breaking the tip) and at such minimal depths that I had to wait hours for circuit boards to finish.
CNC : Ideal Trace Cutter
Thus far I have tried three different bits on my CNC to mill circuit boards. My favorite bit for cutting traces so far is a inexpensive $2.40 fish tail router that I've been purchasing through Drill Bit City. It's a little wide at .8mm ( 31.5 mils ) diameter for surface mount, but nice for quick through hole test boards. Previously I'd been experimenting with V shaped carving bits so that I could do very fine SMT work, but they needed to be run so slowly (avoid breaking the tip) and at such minimal depths that I had to wait hours for circuit boards to finish.