Drawing size does not match to actual lasered size.

LightBurn Software Questions
1

Hello to the forum,

first of all kudos to the Lightburn developers, the software is exactly that
what I was looking for.
=> And I searched a long time :wink:
I’m going to build a CNC plasma cutter btw.

Currently I test with a 65x50cm 500mw Laser Engraver with an ELEKSMALER MANA SE board.

But I currently have the problem that the drawing (example: 100mm wide) in at least twice
Size is lasered. I changed all settings to millimeters
So the drawing size does not match to actual lasered size.

What am I doing wrong here.

Thank you in advance and thank you again for the great software
best regards
Nick

2

What firmware and version are you using? What are the current firmware settings?

3

Most likely your board is not configured correctly. LightBurn sends commands like “move 10 mm” - it’s up to the board to convert those values to actual motor movements, and if the configuration is wrong, the scale will be too. Read here: https://github.com/gnea/grbl/wiki/Grbl-v1.1-Configuration#100-101-and-102--xyz-stepsmm

4

Perfect, thx i will check this

5

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