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[berainlb (PY)]

@caddnima

And they all came black with discernable difference.

Was the difference in the depth of the burn? If so, then it’s likely working as expected.

You can read more about various image modes and how they work in LightBurn documentation:
Image Mode - LightBurn Software Documentation

Read this Topic on how grayscale maps to min/max. This was meant for diode lasers but the technical aspects are the same:

How does Lightburn scale power

Bit of a clumsy title but here goes. Assuming I run one of those grayscale image files of eyeballs available on the web and find for that my ideal power setting is say 65%. Now, I come to run a piece that has many shades of grey but no full black areas. If I run the piece with a max power of 65%, as per the eyeball test will it overburn? Or does Lightburn assign your maximum power to #000000 (hex for colour black) and scale the power accordingly based upon what your image translates as? Mak…

@caddnima

About GRBL-LPC vs GRBL, I am not really sure how to answer this, since I just read somewhere that they have used GRBL-LPC. Maybe I am totally off.

Do you recall where you read this? Normally I would have expected an emulation to target either GRBL or GRBL-M2, not a relatively infrequently used implementation.