ok having it connected to my desktop computer I am having more success however there are new problems but jobs failing doesn’t appear to be one of them. I went back through and deleted /cleaned my laptop of files , drivers and registry settings and reinstalled on my laptop with no change in results. So for now I have been using from my desktop. With this said it does not appear my the laser now connected to my dekstop responds to speed/power adjustments and I can no longer set an orgin. So now I am taking multiple passes just to get a darn engraving. This thing is just ridiculous
This is the reason I have flame sensor disabled if I remember correctly the shiney was setting false positives
Hi Bob
Jobs not failing is great.
Given that both laptop and pc have enough computing ability to run the show, How are they different from each other.
Did you do a fresh install of everything on the pc.
Does that suggest cables or connectors as a possible reason.
Although you cant adjust power, do you know what power its set at.
Concerning the Origin issue, what mode were you using with that issue happening.
- Rule out the file/stream
• Try a much simpler test: Create a basic bitmap—say a 4×4 “ checkerboard at 300 DPI, or even a filled circle—and see if it runs to completion.
• If that succeeds, your issue is tied to the complexity or size of the image you’re engraving.
• Reduce the image DPI: Large raster jobs can overwhelm the USB/GRBL buffer. Try 200 DPI or even 150 DPI and see if it finishes.
• Switch to offline mode: Export your job as G-code in LightBurn and run it from the module’s SD card (if available) or via a standalone sender (LaserGRBL, LaserWeb) rather than streaming over USB.
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- Tweak LightBurn’s streaming settings
• Lower the “Junction Deviation” (in Edit→Settings→Laser) to something like 0.02.
• Disable “Optimize fill” or turn on “Allow ramping”—sometimes the controller chokes on too many tiny line segments.
• Enable “Pace Laser” (in Cut Settings) so that the host won’t flood the buffer.
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- Rule out power-management/USB issues
• Use a powered USB hub between your computer and the laser—this isolates any port-sleep or voltage-drop problems.
• Create a Windows power plan set to “High Performance,” and under USB settings turn off “Selective suspend.”
• Disable Wi-Fi and Bluetooth on the PC while engraving (just in case there’s EMI or driver interrupts).
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- Check the controller for hidden errors
• Even if you see no console errors, grab the LightBurn Console log (View→Console) and before the job fails, scroll through for any ok/error mismatches or ALARM: messages.
• Try switching the console baud rate (e.g. 115200 ↔ 250000) to see if errors show up.
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- Mechanical & thermal sanity checks
• Your 88 °F head temperature is fine, but double-check your water cooling (if you’re using water) or airflow to the control board, in case the driver chips are overheating and shutting down.
• Make sure your belt tension and stepper current are set so the axis doesn’t stall under heavy raster loads. A stalling stepper doesn’t always throw an alarm in GRBL.
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- Final fallback: break the job into passes
• Split the 4×4 tile engraving into 2 × 2 quadrants in LightBurn, and run them one at a time. If each quadrant completes, you know it’s a data-stream or buffer issue, not a hardware fault.
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Next step:
1. Pick one of the above (e.g. simplify the image to a checkerboard).
2. Run it and note whether it still stops.
3. Report back which step helped—or where you still get stuck—and we’ll drill in further.
With a methodical “divide and conquer” approach you’ll nail down whether it’s file size, streaming, power, or hardware—and get that full tile engraving every time.
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Wish I could stream data/info like that!
Brilliantly answered.
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