Colin said here LightBurn v2.1.00 RC-11 Release Candidate - #41 by Colin that STL slicing is coming
I hope I understood that correctly that this feature is coming to LB like depth maps for 3D engravings
any eta? 
kind regards
A few suggestions for depth map engravings as well
-Flood-fill engraving like in EZCAD3
-Display which layer weâre currently on
-A large timer in the frame window showing how long the job has been running (like in the laser window: âBusy: 00:00â)
Thereâs an on-line site that converts stl to png depth maps. Such as this one on github.
When Lightburn loads a Ruida or EZCad2 controller, the whole code or much of it is loaded onto the machine. It doesnât tell Lightburn where it is in the code, so I doubt they will be able to fix this.
Mine does this, at least on using a EZCad2 control board. It would be nice if it didnât just erase it. My jobs usually end while Iâm not looking at them, it would be nice to know how long the previous job took.
I didnât know flood fill wasnât available with EZCad3. I have only used it rarely as it has a pretty specific use.
Might check out Feature Suggestions link up in the tool bar. These suggestions are voted on by the users. If itâs popular, they seem to implement that option.
Good luck.
Itâs shown at the bottom of the screen in the status bar.
We donât have that information, and wonât, without a fairly serious rewrite of the code. As Jack says, the whole job for the laser is prepped and streamed to the laser as a giant block. Itâs just commands for the laser at that point, and the laser itself has a very large buffer. We could potentially tell you how many layers weâd sent, but as far as which one is running, we donât know that.