Because it is a 20W laser marking machine, it is a little bit not clear enough, so I will mark twice. But I have to press F2 twice every time. Is there a setting method that it will automatically mark twice by pressing it directly?
If the power is not enough, you can increase the frequency and reduce the speed to increase the depth of marking.
If it is essential to mark twice at a time, you can check key F3 Parameters – Other – Auto reset mark count, and exit to change the Total number to 2 in the marking column.