Scaling issue and mirror everything

[johcze (John C)]

Anything I create on the software is then double the size when I create it on the laser. Is there a scaling setting in the software that I missed? Yesterday I was etching something that was 5.5" across but I had to scale it down in Lightburn to about a size of 2.55" to get it to etch the correct size. I couldn’t figure an exact scaling factor I just used the red laser preview on the part to get it where I needed the size to be.

Also everything I create has to be mirrored in the software before etching otherwise it comes out as a mirrored image. I saw a mirror switch in the laser settings which I tried but that didn’t have any effect on it. All the tutorial videos I have seen it seems like the laser etches exactly what the screen shows and you don’t have to mirror it within the software.

[ednisley]

@johcze

something that was 5.5" across but I had to scale it down in Lightburn to about a size of 2.55"

Make sure Rotary Mode is not enabled:

Lightburn changing deaminations on its own

The problem is that when creating an image it changes the height. For example I made a teste square that should have been 2X2. To get that finished deamination I had to set it to 2X6 and it created a 2X2 image. The computer is a ASUS laptop. Lightburn version Version 2.0.04. The operating system is windows 10. This is a new issue.

With that Off, then verify the Design Units are set to inches rather than millimeters:

Design Units - Settings/Preferences - LightBurn Documentation

And the Control Units are set to mm/s:

https://docs.lightburnsoftware.com/2.1/Reference/DeviceSettings/DimensionsUnits/#control-units

If all that matches, it’s possible the controller has the wrong step size settings:

Incorrect Size - LightBurn Documentation

@johcze

otherwise it comes out as a mirrored image

That’s generally due to a mismatch between the LightBurn Device Origin and the machine controller’s origin:

Wrong Orientation - LightBurn Documentation