Coils of wire can be made on mandrels of various sizes and shapes. The simplest is the coil of round rings made of round wire. There are many uses for the coil. When sawed into rings it may be made into a chain. By pulling the wire on both ends to stretch the coil, an open wavy coil results, which may be curved or bent to follow a line for decoration. The open coil may also be flattened into a decorative band of overlapping rings. A cone shaped coil can be made on a round pointed mandrel (knitting needle). These may be used for pendants to give movement and interest to a design and are sometimes used as a fringe for an edge.

The jig

Select a round steel mandrel the diameter of the coil de¬sired. Place between two blocks of soft wood parallel with the grain of the wood.  Press the blocks between the jaws of the table vise to form a groove in each block. Remove the mandrel from the blocks, and file a groove at a right angle to the groove made by the mandrel.

Coiling the wire

Place the mandrel between the blocks in the groove letting the end extend beyond the blocks about 1/2 inch. Hold the blocks in the jaws of the table vise tight enough to hold the blocks but loose enough so the mandrel will turn and move out of the groove as the wire is coiled. Make a few coils on the end of the mandrel.   Clamp the mandrel and coils in the jaws of the hand vise. Hold the loose end of the wire in the filed groove during the coiling process to guide the wire and to keep the coil even. Use the hand vise as a handle to turn the mandrel to form the coil.

The blocks holding the mandrel are held in the bench vise. The protruding end of the mandrel is held in the hand vise, and the coil is formed by turning the hand vise. The wire is held taut and is guided by the left hand.

Round Wire Coils

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Often a design calls for a twist of given length, sometimes a tight or loose twist. To determine the length to cut the wire is important. The gauge of the wire as well as the number of twists the wire is given will determine the length of the finished piece.
When round wire is used, two or more lengths are necessary for the twist. A rope-like effect may be obtained by twisting a single length of flat or square wire. All wire should be annealed.

Twisting wire 18 gauge or lighter

Measure the amount needed for the twist. Loop the wire length in the center, and insert the two loose ends through the hole in the spool. Hold the ends in the jaws of a table vise. Insert a small steel rod through the loop of wire, and pull the wire taut. Hold the spool firmly against the rod. Turn the rod to twist the wire.

Twisting wire 16 gauge or heavier

Hold the looped end of the wire in the jaws of the hand vise. Clamp the loose end in the jaws of the table vise. Turn the hand vise to twist the wire.

To determine the length

In cutting the wire for a definite length of finished twist, the following examples have been given of two round wires of different gauges and lengths.

18 gauge, 26 inches, twisted 50 times, gives 11 1/8, inches
18 gauge, 26 inches, twisted 75 times, gives 9 5/8 inches
18 gauge, 14 inches, twisted 50 times, gives 5 1/4 inches
20 gauge, 14 inches, twisted 50 times, gives 4.7/8^ inches

Twisting fine wire

Twisting heavier wire. The wire is annealed. It is held taut while being twisted but will break if it is twisted too tightly.

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