Any ideas why this is happening? I am auto rotating 39° each pass so not even engraving a crosshatch grid, this is weird.
The interval you’ve chosen requires a spot size of about 7 microns. Even my shortest fiber lens (F100mm) is about 16 microns or about 2 times the width of your interval. Are you sure that’s what you wish to do?
When you overlap you always run into the problem of moire patterns being created.
There was a reason that they created 3dslice for fiber machines, it goes between 0 and 90 degrees.
Your value of 39 degrees is rather odd and the hardware might not be able to step these angles… I have never tried some non divisible by 360 rotational rate.
Unless you completely understand interval and chose that value intentionally for some reason, I suggest you watch a video on photo engraving by Laser Everything. It’s a great video.
Hang in there, there are a number of people with fiber machines, maybe someone will see something else.
it is my understanding that the spot size of the laser doesn’t change w/ the interval… the interval is how much the laser ‘steps over’ with each pass. so in the same way if I use a milling machine with a small step over I would just have a large overlap which is what I want in my annealed mark.
The issue also happens when I use 1 pass at 0 or 90 degrees so the 39 degree angle increment can’t be the issue.
It seems to be power related… the left mark (gold) is 50% power, the right mark (blue) is 100% power.
