I want to engrave material that’s exactly .918" thick. (Type-high.) What’s the best approach? Is it possible to put in a negative focus depth? What’s the focal range of the machine?
It looks like I’ll need to raise up the material somehow? Risers to Make Lasering Thick Materials EASY
Looking at those files, it seems like the bed is 1.383" tall. I have spacers that are exactly .918" high already. (Using existing metal type.) I’m thinking if I put them under my material, that would give me 1.836" total:
0.918" spacers + 0.918" material = 1.836" total height.
Subtracting the expected bed height, this would give me:
1.836" total height - 1.383" expected bed height = 0.453" focal height.
Is this correct? Is there a simpler way of doing this?