Neje A40640 15w output laser black Friday deal

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There is also a focus script that draws lines at different Z heights:

Laser Focus Script

I finally got my laser built and put together. I was having a hell of a time focusing it, turns out because it really isn’t super precise.±5mm seems to be okay. I Use this script in Repetier to draw 10 lines each with 2mm added to the z height. So get the focus close, then intentionally go closer.I run the script 2 or 3 times to get the effect. You can see fatter lines and skinnier lines. Once you get to the end subtract 2mm for each line, down, you need to go. Then reset the Z0. So for the at…