Review & Teardown: ComMarker B4 20W Fiber Laser Engraver
Marco Reps Marco Reps
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 Published On Oct 27, 2022

Commarker offical link: https://commarker.com/product/b4-lase...
Amazon sale link: https://www.amazon.com/gp/product/B0B...
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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

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