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A plywood saw is a saw that has a fine-toothed blade that minimizes tearing of the outer plies of a sheet of plywood.An extra set of teeth on the curved upper edge of the blade allows starting of a cut on the inside of a panel (away from the edge) without having to drill a starting hole.
Plywood saw: a fine-toothed saw (to reduce tearing), for cutting plywood; Polesaw: a saw blade attached to a long handle; Pruning saw: the commonest variety has a 30-71 cm (12-28 inch) blade, toothed on both edges, one tooth pattern being considerably coarser than the other; Ripsaw: for cutting wood along the grain;
For most portable plate joiners, a nominal 4-inch or 100 mm diameter blade is used for the Nos. 0, 10, 20 biscuit cuts. The blade is set deeper for joining the larger biscuits. Most blades have 4, 6, or 8 teeth and fit a 7 ⁄ 8-inch or 22 mm arbor. The thickness of the blade is typically 0.156 to 0.160 inch or nominally 4 mm.
The sizes of the most commonly used plywood sheets are 4 by 8 feet (1,220 mm × 2,440 mm) [20] which was first used by the Portland Manufacturing Company, who developed modern veneer core plywood for the 1905 Portland World Fair. A common metric size for a sheet of plywood is 1200 × 2400 mm. 5 × 5 feet (1,500 × 1,500 mm) is also a common ...
The cutting blades are adjusted to match the height and pitch of (& made square to) the outfeed table. The work piece to be planed flat is placed on the infeed table and passed over the cutter head to the outfeed table, with care taken to maintain a constant feed speed and downward pressure.
With the "rip" tooth pattern, the edges are sharpened at right angles to the cutting plane, forming chisel-like cutting surfaces, whereas crosscut teeth are sharpened at an angle, so that each tooth has a knife-like cutting point in contact with the wood. [1] This design keeps the saw from following grain lines, which could curve the path of ...