In April, we took down a sequoia tree, and my husband is interested in using it in the Glowforge. He is cutting chunks of it fairly flat, about half an inch thick on average, and will be planing it. The wood is still somewhat damp.
My questions are:
how dry does the wood need to be?
have others cut/engraved this type of wood, and how did it come out?
what settings would you suggest?
Dry is good, but this depends on what you’re going to do. If it’s particularly wet cutting will be harder but engraving will probably be fine.
Redwood in general cuts quite easily. I was using Sequoia Sempervirens burl and it was dry as a bone. It turned out very nicely, I think.
Suggesting settings is a waste of time-- your species and thickness and moisture content is just too unpredictable. I’d suggest getting a solid understanding of testing routines:
You’d have your answer in less time than it takes for me to write this reply.
You’re going to struggle to cut any species of wood at half inch. I would suggest sticking to the 1/8" thickness area if you can get it, but no more than 1/4" really. You’ll struggle to get an acceptable result, even with an easy cutter like redwood.
It has been my experience that thick cutting ability varies a Lot with species and condition of the wood. I suspect that damp might cut very well but need to dry clamped flat to avoid warping.
Half inch is best for testing as burning through 1/8" wood will not tell you anything about thicker wood, but testing on thicker wood will give you insight into thinner woods as well. Testing is the key.
Deep relief engraving obviously takes thick enough wood though all species are not equal to the task. I have not the slightest Idea about Redwood and how much it burns but Paduk. Walnut, and Maple do excellent.