First lessons in manual training and carpentry (1907)
Craftsman's home study schools, Freeport, Ill. [from old catalog] · Freeport, Ill., The Craftsman's home study schools · leaf 23
cutting. A plain surface is a surface without curvature. Plane the best side until it is straight lengthwise, crosswise andfree from twist. To test your work now make use of the parallel sticks. PARALLEL STICKS. The Parallel Sticks are two pieces of wood of uniform size andshould always be used for… … Taking the direction of the arrow, sighting across the twosticks it will prove at a glance whether or not the stock is twisted.If the projecting edges show uneven, Figure 10, then your stockhas twist and must be planed until the projecting edges of the par-allel sticks become even, Figure 11. Thus…
Carpentry
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