I am having an issue when cutting white card (160gsm to 240gsm I wanted to use) getting brown edges.
I have seen a few posts on here, but all regarding diode lasers which isn’t really helpful for me as I have a CO2 laser (50W).
I can cut the card easily - and corrugated card works really well, but then you don’t see brown edges on that!
I have upgraded air assist and extraction, and currently cutting on a honeycomb bed (cleaned!)
I saw that dot mode might be helpful, but would appreciate some advice from anyone who has had success, as even with fiddling and trying a variety of settings, I can’t do an acceptable job.