How To Found The Perfect Focus Point - NEJE master 2s max with A40640 40w laser modul .
In this video, I am going to show you a quick method to find the correct focal length . This can be used on any consumer laser and is very easy to setup.Ramp Test and Optimal Focus.

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NEJE master 2s max 40 - whttps://bit.ly/3hCPGwB
NEJE Master 2S 20W - https://bit.ly/3hCPGwB

Neje on Aliexpress :
NEJE Master 2S Max 40W https://bit.ly/3lv0M7V
NEJE MF6 Manual Control Air Assist Kit https://bit.ly/3ltX7aD

Cloudray 60W Air Compressor: https://bit.ly/3hCGQ1Z
Laser Engraver Pad :https://bit.ly/3n3nHbi


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