I’m having an issue with my laser being off center. I’m using an Atomstack P1 that is only a few weeks old. I created a jig carrier to replace the metal plate that normally sets in the base. I placed a piece of wood into the carrier that was exactly 110mm x 110mm. I homed the laser and created a reference grid in Lightburn (ver 1.7.08 running on a MacBook Air). It framed perfectly and engraved as advertised. This tells me that my working area in Lightburn and the physical position of the carrier are in sync with each other. Without moving anything or changing any settings, I homed the laser and sent it to x55-y55 (center of work area). The dot that should have been in the center of the grid that I had just made was off. It was 2mm left and 2mm down from exact center. This is repeatable regardless of where the start position is.
I tried using ‘laser offset’ in device settings and it had no effect at all. So, is there another way I can correct for this? Is there a setting in Lightburn that can compensate for this?
I realize it’s not off by that much but I do need to engrave in the middle of some pretty small stuff and need the accuracy.
And Lightburn does have the proper settings lib for the P1 loaded. Also, I would have included pics but they’re almost impossible to get from the inside of a small machine like the P1.
Without any screen shots its going to be hard to give you any help. Laser Offset isn’t going to be any help because that is only used with the Red Positioning Cross. Check all your belt tensions and adjust your homing speed.
Which corner does the laser home to? I think the 2mm difference “may” be due to the pull-off setting for the limit switches.
Try this test. Place a small square in the Lightburn screen and have it engrave does it engrave in the proper position? In other words, if you have the corner of the engraving at 10x, 10y is that where it actually ends up? Run the test on cardboard so you don’t waste good material.
After much playing around, I put the original base plate back in, which has a square painted on it) and sent the laser to 0,0. When i fired the laser it was exactly 2mm off in x and y. So since I can’t fix the problem I decided to band aid the symptom. I redesigned my carrier to compensate for the error. Now the laser fires at what the machine and Lightburn think is 0,0. Not the right way but everything is happy now.