Interesting. As a point of note for those who haven't had hands-on time with a laser cutter before, there's really quite a lot of range of results that can be

Interesting. As a point of note for those who haven't had hands-on time with a laser cutter before, there's really quite a lot of range of results that can be done when you can tune the laser power and speed. For example, I've setup a cutter to engrave wells to embed neodymium disc magnets precisely flush to the surface. For something like this work, it'd probably be useful to setup passes that back off power and/or increase speed as the epoxy is removed. With just a little practice, I'll bet it'd be straightforward to nail down settings for a particular cutter: fast removal, getting close, and just enough power to clean up the last of the epoxy.