Had this graphic, a Kabuki Samurai that had two colors in two places so I wanted them engraved at different powers to reflect that aesthetic, so each feature had to be it’s own file to assign different values. The eyebrows and inset in the mouth, differed from the rest of the face.
(Kabuki is essentially Japanese dance /drama, where the make-up is an elaborate caricature of the character)
Material bamboo flooring 3/8"
Eyebrows - 60 power /335 speed /340 lpi
Mouth - same
Face - 30/335/340
So I opened the file and erased everything except the eyebrows and saved the file ‘as’. Then opened the original again and erased everything except the mouth inset and saved that file. Opened the original and erased the eyebrows and the mouth inset and saved that file.
I opened the face in the glowforge UI, reduced it to size and added the eyebrows. Reduced them to size (by eyeball) fit them to size and placed them, again by eyeball with the size handles and nudge feature. Added the mouth and did the same. All three sized and placed by eye, freehand without any numerical reference.
Watching the laser I noticed it swept up from the bottom all the way to the top doing each individual file. So the mouth started at the chin and worked up, line by line, engraved the mouth inset (340lpi) then proceeded all the way to the top of the head. Then it went to the bottom and started again, at the chin and proceeded to the eyebrows, engraved them and went all the way to the top again. Went to the bottom and did the rest of the face,all the way to the top. Print time 18+ minutes.
I could have saved myself and the laser about 10 minutes of that.
The root of my problem was I didn’t reduce the area to just what was needed for the feature, the file still contained all the area of the original file.The machine dutifully followed it’s instruction - dance all the way up to the top… each time
The odd thing here is that the laser produced these individual dots across the entire surface… all the way to the top. My guess is noise in the graphic. Rogue pixels?
I’m sure this is amusing to those who know, but for those like me - take a lesson, don’t burden the laser and your project with unnecessary real estate.