I read all the comments about engraving on slate. The agreed settings appear to be power 30, speed 900-905, lip 225 or 275 and one pass. I started trying to engrave a .pdf to test these settings and it said 9hours plus. This can’t be right for a .pdf 3” by 3”. I set the focus at .29”. What am I doing wrong?
This is the file
CIA Seal - QYBB731541.pdf (104.6 KB)