I have been testing out engraving on HTV(heat transfer vinyl) so I don’t have to weed it and have had some good results but sometimes when I scan with a dxf file it’s one setting, then I use a png file and select dither it needs a different setting and again I change to Threshold it needs another tweak to my settings. I can’t get one setting
It’s not a lot I change from between 200-206 speed and my power changes from between 9-9.5%
I’m using 80w 4060 Chinese laser with ruida controller
In the picture you can see the htv is missed in some areas of the scan, maybe it’s a setting that allows it to keep the same depth
I can’t answer your main questions, but have one of my own.
Are you using a product advertised as being laser safe? Vinyl when zapped creates chlorine gas, detrimental to one’s health and the health and well-being of the laser. A search using TheGoogle shows a number of products that are not dangerous for laser work.
Also useful information on this LB forum post that may assist your objective.
I love seeing those tags, “laser safe” or similar.
I’ve never detected any chlorine smell, but I suspect that if there’s enough to detect by nose, it’s already too much and too dangerous. I’m sure in my youth that I’ve burned ordinary PVC pipe but can’t recall any aspect of it.
