Best strategy for precise diameter holes?

[jkwilborn (Jack Wilborn)]

Apply Inside kerf of 1/2 your laser kerf.

Kerf Offset test: with built-in vernier scale for accuracy, no tools required!

There has been a bit of a flurry of marquetry lately on the forum, and it prompted me to make a tool to help calculate kerf offset accurately and easily, while using minimal material: [image] I was inspired by @jkwilborn’s tool, but I added a vernier scale to make it easier to measure, without needing calipers! Just cut it, slide it, and calculate your kerf. [Preview of the kerf offset tool in LightBurn.] Here’s the file: Kerf Test with Vernier Scale.lbrn2 (2.4 MB) I’d love any feedbac…