I feel down the STL rabbit hole today with a short piece of 2x6 in hand.
I grabbed the free STL demo at 3dwave and loaded it into the STL to PNG tool @fenrus wrote. BTW, thank you for making that available.
I imported the PNG, made one roughing and two finishing tool paths and presto, I had a pretty nice looking chuck of pine 2x6 in hand. I brushed a little oak polyshade over it for some highlights.
