Flattening Boards - Without Expensive Machines

I've been making hand planes with my CNC for a few years and was asked to show a quick demo of flattening a board with one of the planes. This was just a quick demo that turned out to be more challenging than planned. What started out with rough sawn maple got more difficult as I realized the maple was curly. I worked through it, but it wasn't as quick and easy as I planned.

Link to purchase a hand plane or CNC file to create your own: https://windridgewoodcrafts.com/shopping/hand_planes/