Purchased a new laptop the other day. Loaded Lightburn. Everything else is working but the software says there is no connection. Changed the connector cable the other day to a new USB to USB B. Still says there is no connection. I,m a newbie to this forum so any advice greatly received.
ednisley
November 15, 2025, 2:11pm
2
colin31dip:
new USB to USB B
Assuming the requisite USB driver is in place and Windows recognizes the controller when you plug it in, then selecting that port in LightBurn should do the trick.
The Troubleshooting process may help:
If not, tell us where it falls off the rails.
Based on past problems, however, using the Ruida’s Ethernet connection will avoid a tremendous pile o’ hassle:
Hi everyone,
I’m having a strange issue with my laser cutter and I’d love some help figuring it out.
As you can see in the picture (from top to bottom, it shows my first to most recent attempts), some letters are randomly missing or partially cut when engraving text. I’m cutting at speed 50mm/s and power 35%.
I’ve already tried applying an offset, and then used the Pathfinder tool (unite/merge) afterward — but there’s always a small issue somewhere.
What’s odd is that if I cut each letter in…
Hello. I’m new to the forum but have been using my OMTech 70W Co2 laser for a couple years. I’m wondering if anyone else has had an issue with the laser stopping after a few seconds. I was running a batch of stuff and as soon as I changed files, Lightburn said it needed to be updated (to version 2.0.02). I did the update and that was it. Every time I try to engrave, it stops after a few seconds. Nothing else changed except for the update. I’ve reinstalled old versions, rebooted everything, and n…
I am operating macOS Sequoia 15.5 on Apple M1 system. After installing v2.0.00 and trying to cut
the laser will jump and cut a line that does not exist on the workspace? I tried multiple times to cut different images and the same occurs each time. I did the update and the same issue.
I have reverted back to 1.7.08 and no issues. Any suggestions would be appreciated,
[IMG_8505]
The setup doc gives the process:
More details:
I woke up this morning, turned on my laser and laptop, opened LightBurn, and it won’t connect
I have been using the same Ethernet connection for 2 years without issues
Troubleshooting:
checked all port connections and cables
used a different laptop
Checked my IP address was the same on Ruida and the laptop.
Then I tried using the serial/USB method on LightBurn (version 2.0.05), and nothing
Opened RDworks, ethernet not connecting, but serial/USB is working.
does anyone have any clues as t…
Thanks for your help. All up and running.
ednisley
November 17, 2025, 12:42am
4
colin31dip:
All up and running
Don’t leave us in suspense: what was the missing link?
