I have recently swapped a Leetro controller for a Ruida 6445S this is in a Laserscript 6090 60W machine that was working fine prior to the swap. I have successfully managed to swap the controller and the machine is cutting and engraving, I have tried to mitigate the issues I am having by ensuring that the laser is aligned and the mirrors secure, Lens has been replaced, Head focused, the machine is stable and does not move during use, axis calibration has been done a few times now, scanning offset settings have been adjusted successfully, checking the rails are free and lubricated, getting the belts to the correct tension and finally checking all connections are tightened… Connected to the controller via. USB to a Lenovo laptop running windows 10.
However, I am having issues with my engravings skipping every so often, I have a small test file (40mm circle with Test text inside engraving at 400mm / 30%, cutting at 18mm / 39%) which never seems to shift. The shift occurs when I do any other engraving see pictures attached, it also varied with severity. I have gone through de-selecting the flood fill settings and selecting fill groups together in lightburn but it has not made any difference.
Any help will be much appreciated because I am a slight loss as to what is going on and need a fresh pair of eyes!
I was trying to clear up what happens when a problem, like the bottom photo occurs. Do you have to reset the machine or will it return to home ok? I’m trying to eliminate a lost step issue.
Now that you mention the sound it did make a small clunk and the machine jumps slightly when it has failed on that portion of the engraving, almost like it overshot it’s mark and corrected itself, however it always goes back home. It has made that noise on several occasions during engraving the text. When that happens that’s when I get the scanning shift on X, other occasions it’s as if the laser is on when it shouldn’t be and I get scan lines outside of the engraving. Also not sure if this information helps it seemed to occur when I reduce the scan gap down to 0.02mm, when it’s set to 0.5mm the scan tests I have run for backlash are fine with no distortion and subsequent text engravings go well.
I will triple check my settings and then try the rectangle and see what outcome I get and hopefully replicate the fault, the two images are only a handful of failures trying to engrave, the burn pile is increasing .
Right, done a quick test like you said rectangle within a rectangle, single direction scan gap at 0.02mm 300mm/30%. No shift at all, see picture. Laser head returned to home.
Also tested if home was in the same place by sending the head home and firing the laser then moving it and sending it back home and firing it again, both spots were in the same place.
Ran two different texts at the same speed and power settings and the same thing happened but this time I noticed the scan reversed as if it was got to the end of one line and doubled back on the next line.
The engraver seems to be well calibrated and well controlled. It doesn’t seem mechanical to me. I know that’s really ethereal but that’s my impression from the images.
I’d like to confirm that the file appears intact (undamaged) on the screen of the controller.
My next thoughts would be related to grounding and system noise inside the chassis while the engraver is running.
Thanks for the insight, interference could be an issue I will have a look at what wiring is close to each other.
Now that you mention it, there has been no previews available on the controller from files sent via USB. I am using the USB that came with the controller. Is this what you mean by intact?
I have been trying to set ethernet connection up with the controller however I have had no success hence using the USB. RDWorks does not recognize the controller but lightburn does. I will try again to set it up.
As for the preview of the item, I can only see the image when I select the file from the Udisk. If it is modified on screen the preview disappears, unsure if this is normal? Files sent by USB load into the controller however do not appear as a preview on screen during job run. Last night I loaded the file from USB to Udisk to run and the file was carried out perfectly with no skip, preview was shown on screen.
Will hook up ethernet and play around with it some more
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in the tool bar…