Yet my father Hermann Steiner's phenomenal invention is much more than that,” said Karl Steiner. “The original wood biscuit is a joining element which joins wooden panels precisely and firmly. Karl Steiner, former owner/CEO and current Chair of the Administrative Board of Lamello AG, was in high school when his father Hermann Steiner invented biscuit joinery in his cabinet shop in Liestal, Switzerland. The thickness of the blade is typically 0.156 to 0.160 inch or nominally 4 mm.Hermann Steiner invented the Lamello biscuit joining system in his cabinet shop in Switzerland. Most blades have 4, 6, or 8 teeth and fit a 7⁄ 8 inch or 22 mm arbor. The blade is set deeper for joining the larger biscuits. Note: The sizes were taken verbatim from the Porter-Cable website.ĭetail biscuits are smaller than standard biscuits and are typically used to join smaller pieces of wood together, and offer less structural support.įor most portable plate joiners, a nominal 4 inch or 100 mm diameter blade is used for the #0, #10, #20 biscuit cuts. Sizes of Porter Cable biscuits SizeįF = Face frame for 1 + 1⁄ 2 in width, and up. Six-depth settings of biscuit joiner (six-size biscuits with no blade change) include #00, #10, #20, D, S, S6 Use only on biscuit joiner with six-depth setting Standard cutter width is 4 mm or 5⁄ 32 in. Some models allow slots to be cut at angles other than 90° to the joining face, for example 45°, which greatly speeds up the assembly of things like cabinets. The smaller base can be rotated through 90°, and accessories are provided for altering the offset of the base to the blade (for use with thicker or thinner materials as required). The depth of the cut can be altered by an adjustable stop. This fact makes the biscuit joiner easy to use, because it does not require extreme accuracy or jigs to achieve perfect joints. The waste material is blown out of the slot on the right of the base plate.īecause the slots are slightly longer than the biscuits, it is still possible to slide the panels sideways after the joint is assembled (before the glue sets). The operator aligns the machine and uses firm pressure to push the body forward against the base plate to make the cut. The body of the machine with the blade is spring-loaded, and in the normal position the blade is retracted. The machine has reference marks on the centerline of the blade for easy alignment to the marks on the materials being joined. The parts are separated and the machine is used to cut the slots in each piece. Precise measurement is not required, as the biscuits are hidden when the pieces are assembled, so a quick pencil stroke that marks both pieces where they align is all that is required. The workpieces are brought together and the user marks the location for the biscuits. Typically, the machine will have an adjustable fence, so it can be set on an angle for joining mitered pieces.Īlso, there are other types of specialty biscuits available, from metal connectors, used for removable panels, to hinges, making these portable machines even more flexible. The biscuit provides a quick means of getting a perfectly flush joint, while at the same time reinforcing the joint. It is important to use the same face when cutting the slots, so the boards are perfectly flush.īiscuits are also used to align edges of workpieces, such as when forming a 90° angle between workpieces. They are also used to align pieces when joined edge-to-edge in making wider panels. They are sometimes used with solid wood, replacing mortise and tenon joints, as biscuit joints are easier to make and almost as strong. Production īiscuits are predominantly used in joining sheet goods such as plywood, particle board and medium-density fibreboard. Several other companies such as Porter Cable, Dewalt, and Makita also manufacture compatible biscuit joiners, including some models with interchangeable blades, enabling the user to cut both 4-and-2-inch (102 and 51 mm) biscuit slots. Lamello Top biscuit joiner with blade extended
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