Review & Teardown: ComMarker B4 20W Fiber Laser Engraver

ComMarker B4 Kickstarter: Brymen Multimeters More from me: Unsafe Warning Stickers OrangeCrab FPGA board 00:00 Intro 01:35 Unboxing 02:32 Setup 03:22 Software 04:18 Focus 04:59 First pewpew 06:05 Usable Area 07:17 Goggles 09:09 Spot size 10:13 Engraving metal 11:32 Resistor trimming 12:25 Unsuitable materials 13:22 Serial numbering 15:01 Milling & Cutting 15:48 Color engraving 16:34 Rotary axis 17:47 Ceramic scoring 18:40 PCBs 20:55 Integrated circuits 21:50 Teardown 24:34 Conclusion