Hi, Thanks a lot for your reply!
I did some experiment to try to determine whether the poor cutting is caused by the uneven bed or the mirror alignment.
I took the same small piece of wood and put it in all 4 corners. Each time re-adjusting the laser height for that corner of the bed.
TL = top left, TR = Top Right, BL = Bottom Left, BR= Bottom Right
You can see that the bottom right is the only one that has issues. At least this led me to think that the leveling is not the only issue.
I tried to do the mirror alignment, and i follow the instructions, firing the laser when its close then when its far along the different axis and they seem OK.
However, when I do the following test, the laser doesn’t hit the same point on the mirror.
I put tape on the opening above the laser head, then put the the laser in position 1 (middle left). Then do a pulse. then move the laser to position 2 and do a pulse, the two dots line up almost perfectly.
But if I place the position (1) then pulse, then move to position 3, they don’t line up and the 2nd dot is 2mm lower.
I did of course try to align the other mirror by only moving the head along the y-dimension and those line up very nicely as well…
I thought i would post this incase anyone has any other ideas on what i can check. Or maybe can point me in the right direction with the symptoms i am experiencing.
One thing i will say, in my screenshots, you can see that the vertical lines of the laser are not as sharp as the horizontal lines… Not sure what that means either.
Anyway, thanks a lot for your reply.