I'm planing on building a cnc laser cutter for cutting black 5 mm foam board, and if possible some 2 mm plywood. Right now im trying to figure out what parts do i need, mainly what laser diode do i need. I know that most of you will suggest building a CO2 laser but that's wayyy out of my budget. I was thinking of using the NDB7875 diode with G-2 lanses, do you think its enough for my needs? i dby dudu_abdu - Laser Cutter Working Group