Bought this black walnut cookie off of Facebook marketplace for a good price. The only catch is it is warped, cracked, cupped, and twisted. It's about 4 in thick and that's plenty of material to make a coffee table, but I need some advice and guidance on making a router planing jig please.
Maybe this is a dumb question, but why not just use a hand plane?
I have used a hand plane to flatten coffee tables in the past, but I don't think it would work well with the circular grain pattern and it would take me a week. Plus walnut is hard as heck.