I ordered some knives and the wood is possibly koa or something like that, its very hard and kind of rounded with a couple finger notches. I have an order to personalize one. what settings would one use for the best result?
Welcome to the forum.
I have moved your post to Beyond the Manual as that is the only area of the forum where we are permitted to discuss settings for non Proofgrade materials.
A search of the forum results in some posts about Koa so perhaps some of this information will be helpful: Search results for 'koa' - Glowforge Owners Forum
Nobody is going to be able to provide settings for “koa or something like that”…
You need to test on a sample of the material you have on-hand until you are satisfied with the results. There are dozens of threads on how to go about doing this.
Number 6 will help you out!