I upgraded from 1.7 recently and jumped straight into 2.1.02. In 1.7 i had my design units in inches and my control units in mm/s. The materials library displayed in inches, just like the design units. After upgrading and reimporting my old cut settings, it appears the library syncs with the contr…

Check if this helps: [image] PSA: Unit Settings Changes in LightBurn 2.1 Announcements We are aware of an issue causing some users to see a change in units used for their cut settings in version 2.1, and will have a fix ready for our next patch release (ex…

OK, you had me convinced I had lost my mind, so I fired up my old 1.7.08 install: [image] I had my design units in inches, the material library was in inches, and my control units were in mm/s.

Now with the switch, you can have it either way.

Sorry, but I think I’m missing something obvious… Design and control units haven’t been explicitly linked for years (see screenshot above). I’ve run with my control units in mm/s and design units in inches since at least 2024. From my perspective, the only differences I’m seeing now are that a) the…

You are making this too complicated. I would expect the Materials Library to match control because that is your burning settings. As for the switch, mine is off. I am always metric to the laser, and everything related to that. But in the Design screen I flip back and forth, having about 50% each. Y…

I wouldn’t say I’m ‘making it too complicated’ because it’s a distinct change in behavior. It used to work one way, now it works differently. So, either the behavior changed (in a way I strongly dislike) or it’s actually /more/ complicated and there’s a setting somewhere that I can’t find.

ahhhh, ok. I see the disconnect. I’m not being specific enough. To clarify, the control settings in the materials library (speed, specifically) have always matched the machine control settings. What I’m talking about is the thickness specifications in the materials list. They used to match whatever…

Ahhh! Maybe you can add that to the Description as a workaround: [image] . [image]

I mean, I could, but I’d be interested to know if the developers consider this a regression and would consider fixing it instead.

A few things first for context. Please note, I’m trying to provide clarity for the topic and terms we are discussing. Not trying to just tell anyone that they are wrong. [image] ChrisStrykesAgain: In 1.7 i had my design units in inches and my control units in mm/s. This was not a thing in 1.…

Materials library now syncs with control units, not design units

LightBurn Software Questions

parsec (FerAS) June 14, 2026, 9:55pm 2

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