Winding stick

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Winding sticks in use.

In

framing squares may also be suitable. Traditionally they are 16 inches (41 cm)[1] to 30 inches (76 cm)[2]
long, 1+34 inches (44 mm) tall and tapered in their height from 38 inch (9.5 mm) to 18 inch (3.2 mm). The longer the winding sticks, the more they will amplify the wind. It is common for a woodworker to make a matching pair for the purpose, and contrasting colors of woods improve the discernability of differences in height and level between the two sticks as they are compared.

One winding stick is placed on one end of the piece and the second winding stick is placed on the other end, parallel to the first. The woodworker then stands back a short distance and sights across the top of the two sticks. If the surface on which the sticks are sitting is flat (in the same

hand plane). This process is repeated all across the piece until the piece is satisfactorily true. Longitudinally the piece is checked with a straightedge
.

Winding sticks are generally planed parallel back to back to ensure they are true; this is why it is important to use the sticks with the inlay facing one another. They are not dependent on being the same height along their length; the critical element is that they are parallel to each other and then used in that configuration.

Sticks are used facing one another (top). When aligned for planing, they can be placed back to back (bottom left) or face to face (bottom right).

Every workshop has a different climate, and it is advisable to check from time to time that a pair of sticks are still true. If it is found that they require adjustment, it is a straightforward task to correct. Firstly the soles are checked to be flat; a long shooting board is recommended for the job. Next align both sticks either back to back or face to face, whichever is easiest to secure, then take light passes over the tops with a hand plane until even shavings are produced from both sticks. They are now parallel.

References

  1. ^ a b Ellis, George. Modern Practical Joinery. London: B.T. Batsford, 1902. 51. Print.
  2. ^ Holtzapffel, Charles. Turning and Mechanical Manipulation Intended as a Work of General Reference and Practical Instruction, on the Lathe, and the Various Mechanical Pursuits Followed by Amateurs. Vol. 2. London: Holtzapffel & Co., 1856. 500. Print.