Glass rod or cane, is produced by slowly and steadily drawing a piece of glass from a molten pot of raw glass, or by heating and drawing out a block of glass that can have complex patterns inside. The cane is cut to lengths, or in slices, for use in glassblowing.
A technique, originally adapted from glass, where a design is constructed using long rods of clay so that the design runs lengthwise through the log or block. This allows for identical slices of the same design. Canes can also be reduced or made smaller so that you can get the same design or pattern in a smaller slice.
Long thin pieces of glass, usually round, usually colored, used to build millefiori and murrini and as rods to decorate glass. The simplest cane is made by heating glass and pulling, the only trick being the rate of pulling to get a long rod of even diameter. The rod may be several yards/meters long. 1/8" to 1/4" (3-6 mm) is a common size. If color is coated with clear and then pulled, a thin rod of color is inside the thicker of clear. If several of these rods are bundled and twisted as they are pulled a spiral pattern is created used in latticino. Cane may have the center core molded, say into a heart, then cased, the colors remaining separate when pulled. A pattern cane may be built then surrounded with other patterns, say petals, and pulled to make a flower pattern or a more complicated picture. Millefiori is a form of cane, cut off in short pieces, figured like small flowers. Murrini are pictures made in glass, usually sliced very thin.