Ernie Martinez
10-04-2012, 2:36 PM
I'm trying engrave letters into black acrylic sheet 24 x 12. I've arranged three 11"W x 8"H signs rotated 90 degrees so the letters run sideways from bottom to top (Left to right rotated).
My problem is that the letters at the extreme left side (bottom when oriented in laser) are not coming out as white as the rest. I'm assuming it's because of slight warpage in the sheet causing a focus issue. The warpage is almost imperceptible but if I lay the cut 8 x 11 sign on a table I can see about a 1/64" gap from flat.
What do you guys do when this happens? I'm experimenting with the black sheet before I go and screw up the more expensive Rowmark sheets.
If you don't believe that this slight variation should be enough to cause a focus problem, what else could be the culprit?
My problem is that the letters at the extreme left side (bottom when oriented in laser) are not coming out as white as the rest. I'm assuming it's because of slight warpage in the sheet causing a focus issue. The warpage is almost imperceptible but if I lay the cut 8 x 11 sign on a table I can see about a 1/64" gap from flat.
What do you guys do when this happens? I'm experimenting with the black sheet before I go and screw up the more expensive Rowmark sheets.
If you don't believe that this slight variation should be enough to cause a focus problem, what else could be the culprit?