Spent some time today figuring out how to use lightburn and how to think in 3d layers.
I need a caliper because wow was this annoying to do with a cheap plastic ruler.
I was going to use lightburn to pre “drill” some holes to mount it to my workbench but lining the holes up over 3d transformations is not where my brain is at tonight 
Easier to just glue them together and use a drill
File here. Position is a bit weird because I felt lazy and made a jig to make multiples. I find setting focus a bit lower than normal helps cut through with these coasters.
Rigid Battery Holder.lbrn2 (48.2 KB)