Step 1: Jointer / Planer to Smooth Rough Cut Wood
Once one side is at least semi-smooth, the wood can then be placed in the Planer to finish both sides. Once the machine starts biting into the wood, continue running it through the planer one side at a time rotating it with each pass. After each pass, the wheel can be turned 1/4 rotation to smooth the surface deeper and deeper.
After both sides are smooth, or to the desired dimension, the Jointer can again be used to smooth all four sides.