Being relatively new to timberframeing, I've never used a beam planer like the Makita is see offered in the post below. Can someone explain how you go about flattening and squaring two faces of a beam to allow you to use square rule? How do you set up the planer? Is there some sort of jig involved? How do you make sure the second face is square to the first? I have acquired some rough sawn beams and some that have some twist and some that are not perfectly square. I might be in the market for a beam planer if I really understood how to use it. Thank you for any help you can offer.