The new module just arrived and i ran into an issue.
I did the first setup exactly as shown in this video:
Now to my problem:
I generated the gcode and loaded it into the workspace. The first time i tried “Auto Mode” and it worked perfect.
The second try with “Manual Mode” to set the thickness by my self. I started the job and the module rammed into the workpiece and the bed. I recalibrated everything and tried it again, same result. It set a completly wrong material thickness.
I tested it a 3rd time with a much bigger thickness value of 60mm, just to know how much it was off.
With a “Manual Mode” value of 60mm, the laser only had 42mm between the bed and the black aparture.
“Auto Mode” had around 10mm between the workpiece and the aparture.
It is around 28 mm off to get the focus on the top side of the bed.
I’m not sure how you are getting this result. I’ve done two manual mode jobs where I’m telling the laser the material to be focused on is thinner than it actually is and I did not have a crash.
I’m working with glass tiles with a colored backing. I hit manual mode after starting the job, position that head off to the side of the tile and lowered it to the print bed then backed it off 0.5 mm to account for the thickness of the tile backing. Set the thickness. The head raised up sufficient that there was still three or four mm Gap to the top of the glass which was about 6 to 7 mm thick.
It directed me to put on the goggles and gave me the light spot to set my xy 0 start point. Ran a boundary then cut.
This is all with the file already on the USB and accessed from the touch screen. Not through Luban interactively. A250, 1.14.2 FW
I had this happen- and was glad I had to stop button! I believe it was due to the following order of events:
Camera capture- notice that this leaves the laser kind of centered on the Y axis
Manual mode from Luban- smashed the laser
My fix was to home the laser after camera capture and then run manual mode. However, one time I did this the laser then messed up X positioning and shot the wrong target by about 10 mm.
I had the exact same experience as the original poster. I believe the problem is that the Work Origin coordinates have not been updated from whatever your previous toolhead was (in my case, the 1.6w laser). I had to reset a 0 height on the Z axis manually. It did not acquire this from the original focus calibration.
