I created this simple jig to allow drill 90 degree in middle of 18mm furniture board (in my example ikea kitchen) so you can use furniture confirmat screws M7.

Drill size 5.5

Profile outer wall speed is slow down to maintain consistent color (guide wall is slower due to cooldown what cause shiny/matt issue), if that doesn't matter, then bump it up for faster print.

Hope someone find it usefull.