I am wondering what a good way to prep a spoilboard is. I think i’m about .1mm off from side to side based on the pressure of a pen in my crown test. I want to add aluminum T slots into the board so I have a place to secure hold downs.
I was thinking of using this endmill to make the T slots.
and using a flat 1/8" head in .5mm passes to flatten the spilboard
any advice is welcome