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The focus spot size for my current lens is 34um. The 50mm is 12um and the 70mm is 16um. Does this mean that given the same power and speed settings, the 50mm lens would engrave almost 3x deeper per...

My machine came with a 150mmx150mm area lens. Options are 50mm, 70mm, and 100mm. I want to mainly do deep engraving on brass and steel. I understand that the wider the field, the less power density...

I bought a used CO2 laser power meter like the one below for $50 on Ebay. Check this instructables link.
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The laser is focused properly, but has very weak output. I have run across some comments that say the main laser source will not fire properly if the red dot marker is still on. My red dot stays on....

Hello,
I recently purchased a fiber laser desktop system and the laser source does not seem to be working.
Maxphotonics P/N MFP-20-C2NN4

The unit I purchased has EZ CAD and...

I have ordered a Chinese 30W Fiber Laser with a MaxPhotonics source.
Yes I know its not the best...Its what I could afford, and should serve my intended use.
Mine is coming with a lens for a...