Made this knife kit yesterday. I used some molybdenum disulfide lubricant to make the pattern on the blade. The K40 doesn’t quite get the material hot enough to form a solid layer but did manage to lay down a durable pattern. I scrubbed it with a green abrasive pad and acetone. Settings were 2ms at 18mW
That looks great. I have found that more than one pass darkens it up quite a bit when using that spray moly