About two days ago I was cleaning the optics and after finishing setting the mirrors something touched me and I checked if the beam falls properly in each corner of the table - the effect above.
I checked the perpendicularity, parallelism of x to y and the tube relative to the axis and I found nothing, I dismantled the mirrors, the tube and set it from scratch, I rotated the tube around its axis because I thought maybe the lens in the tube is crooked, but nothing brought any results.
Has anyone had a similar issue?
Thanks for the reply, interesting material. I borrowed more accurate measuring instruments from work and it turned out that my frame is not square. The corner at point 1 was 0.8mm higher than the others and the angle between y and x was less than 1 degree. I haven’t fixed it yet, so I don’t know what the results will be, but as soon as I do, I’ll write if it solves the problem.
The beam in the 2nd corner still escapes a bit but the improvement is huge. I think I will leave it as is. All I had left to do was center everything and check the correctness of the cut. Btw, I’m very happy with the results.
When I tried to fix on m1 I got something like an x pattern made of dots, unfortunately I don’t have any picture.
Correction is done by frame alignment.
I raised the corners 2, 3 and 4 by 0.9mm and this correct beam vertically, horizontally it was a bit harder I had to stretch the frame at point 1 to the left, result - picture above.
