Abstract: A portable assembly is provided in which a power tool can be mounted on a rotatable plate. The plate is large enough to allow the saw to travel above a worksurface. When the plate is in a reference orientation, a workpiece on the support surface below the plate can be cross-cut or rip-cut. When the plate is offset from the reference orientation, the workpiece can be miter-cut, compound-miter cut, or rip-cut. When working with large workpieces, the plate with the power tool can be inverted, transforming the assembly into a table saw. The plate is preferably configured to allow popular sized power saws, jig saws, and routers to be mounted and used in the above manner. Multiple standard width guide plates can be provided with the assembly, to minimize the need to adjust the guide rails.

Abstract: A platform extends over a work surface and includes a circular opening across which a circular-saw support frame extends. The circular-saw support frame is adjustable to accommodate the sole plate of any of a variety of models of circular-saws. The platform is supported above the work surface by support elements arranged at the corners of the platform, allowing the workpiece to be inserted from any direction. Because the saw support frame is supported at both ends by the platform, the torque forces associated with a cantilevered radial arm saw structure are avoided. The apparatus also includes a base that forms the work surface and includes a drawer for holding tools or parts. The drawer is preferably partitioned and configured to capture a substantial portion of the sawdust that is produced by the cutting. The apparatus also includes a removable and adjustable fence that facilitates accurate and precise rip-cuts.