Joe Pelonio
07-24-2008, 4:52 PM
I was running a job to cut 1/4" acrylic from a file sent to me by the customer. Since I always had good luck with their files I didn't look at the details. I ran it and after 2-3 objects cut the laser sped up and cut the rest at about 3 times the speed I'd set it on (8).
I have never seen that happen, unless, of course, color mapping is set.
I checked that first, it was not, and all lines were black. Then I checked line widths. Aha, they were not hairlines. As I understand it the line must be under .007" or .5 point thick to cut. The letters that did cut were .217 points. The ones that cut too fast and only halfway through were .499 points. That translates to .00693......" thick. I suspect that being so close
to the limit caused some kind of rounding that confused my machine. Does the math sound right?
I since changed all lines to hairlines and it ran fine. Since I hadn't moved the material, nothing wasted.
I have never seen that happen, unless, of course, color mapping is set.
I checked that first, it was not, and all lines were black. Then I checked line widths. Aha, they were not hairlines. As I understand it the line must be under .007" or .5 point thick to cut. The letters that did cut were .217 points. The ones that cut too fast and only halfway through were .499 points. That translates to .00693......" thick. I suspect that being so close
to the limit caused some kind of rounding that confused my machine. Does the math sound right?
I since changed all lines to hairlines and it ran fine. Since I hadn't moved the material, nothing wasted.