New user and mostly good so far. Trying to use Print and Cut and have an issue with cut registration as follows:
Register two points with Move and use a pulse to confirm 100% accurate.
Use Print and Cut Wizzard to register both points and then Aline Output to Targets. Origin set to Absolute Coords.
Frame job - Frame is out in both X and Y by 50 to 100 mm?
I had expected perfect alinement and cannot figure out why the discrepancy.
Further investigation, and there is a big difference between the coordinates of the registration marks in the software, and the coordinates of the actual locations as per the pulse test. Is this some sort of bed calibration issue?
I Do not remember how I set this up and cannot find the details. Under Controller Information it says that the Board is RDLS-V8.02.68. It is a Chinese 1390 CO2 @120Watts.
Homing is fine.
Yes, I did make that mistake, but now all joggings is done inside Lightburn (Question: How to change default jog distance – can’t find that?)
The file I am trying to cut is a Corel Draw file that came in via the Lightburn macro. It has not been saved as an .lbrn file.
Steps as follows:
a. Export artwork via Corel Draw macro to Lightburn.
b. Capture the bed image from a calibrated Lightburn camera.
c. Us Go To icon to get close to registration mark #1 using the camera image. Note: Big difference between the camera image location and the Go To position.
d. Jog laser head to over mark #1 and fire pulse.
e. Save location of mark #1 in Move > Saved Positions.
f. Measure pulse to mark #1, edit saved position coordinates in Move and repulse.
g. Repeat above until mark #1 saved position is accurate.
h. Repeat c to g with mark #2.
i. Run Print Cut wizard. Use Goto in Move to get to mark #1 and set as point 1.
j. Use Goto in Move to go to mark #2 and set as point 2.
k. Aline Output to Targets (no scaling), have also tried with scaling.
l. Frame. Note: Big difference between frame and artwork – similar to difference noted in c above.
The coordinates of Mark 1 & 2 in the Artwork are very different to the coordinates of the accurate pulse-corrected saved positions in Move.
Looking for solutions, I have found:
Machine Settings > Calibrate Axis – I have not done this.
Device Settings > Additional Settings > Read From Controller – I have just done this but have not tested it since.
Did you use jogging controls exclusively when you had the issue described in the original post? Jogging distance can be changed in Move window.
Camera function isn’t critical for Print and Cut to work correctly so not a direct issues. However, this makes me think the camera is not in fact calibrated. Are you able to burn to a specific known location based on camera overlay? I’ll leave this issue to the side for the time being.
Overall, your process is a little convoluted but seems in basic correct.
Can you confirm a few things?
You didn’t state it but are you trying to cut out something you printed from CorelDraw prior to the first step you list?
Assuming yes to above, can you confirm that the dimensions of the print match the design in LightBurn? If dimensions to not match you will need to use Align Outputs to Targets (Scaled).
Are you able to reexport the file and save in LightBurn format to upload here?
How are you determining coordinates of the marks in the artwork?
If using scaled alignment this shouldn’t prevent at least proper framing as far as I know.
You likely have “Continuous Jog” enabled. Disable that if you want to move in specific increments.
How do the design dimensions compare to what was actually printed on UV printer?
Unless you happened to position the material at exactly the right position on the bed I wouldn’t expect the position on workspace to match the actual position of the registration marks on the material.
I don’t see an inherent problem with the design file.
Continuous Jog was on - I can now edit the jogging distance.
Corel artwork and print file are within 1%, the printer is calibrated and we do a lot of this work. The frame is out by over 50 mm so this is not the issue.
I had expected the Print Cut wizard would adjust the XPos/YPos to match the marked locations.
Are you saying after the wizard is completed? I don’t believe there is any user visible translation of workspace position to physical position. This is all handled at execution time as far as I’ve seen.
Can I suggest you run a far simpler test?
Create a simple design that fits onto a single sheet of printer paper. Try running print & cut. Do you notice anything in the process?
I don’t see an issue with the overall process at the detail provided so there must be a nuance that’s not listed or that I’m not interpreting correctly.
If this doesn’t work correctly with the smaller design are you able to take a video of that process?
