Because of the fact that pattern lumber can be bought already dressed to any required thickness, a planing machine is not found in every pattern shop. The ordinary surface planer, however, will not take out the twist, or wind (I as in find), and the curves from the surface of the lumber - a matter of very great importance in pattern work, and one which requires a great deal of time if the planing is done by hand.
The hand planer and jointer, illustrated in Fig. 100, is almost indispensable, not only for facing the sides of the boards perfectly true, straight, and free from wind, but also for jointing the edges, and for making perfectly fitting glue joints in a manner superior to any hand work. These machines can be bought in widths of from 12 to 30 inches. A machine 16 inches wide is a very desirable size for pattern work.
It will readily be seen that the running of a board over the hand planer, while facing the surface straight and true, will not reduce the piece to a uniform thickness. To avoid the necessity for much hand work in accomplishing this result, first face the piece on the hand planer so as to make one true side, and then run it through a surface planer similar to the one illustrated in Fig. 101. If they can be afforded, both of these machines, especially the hand planer, will return large profits on the money invested in them, because of the time and labor saved and the superior quality of the work done.