Abstract: A miter saw assembly is presented as a power tool, the miter saw assembly includes a base; a fixture supported on said base; a proximal pair of arms, hinged with four hinges to said fixture at a first hinge point; a gear box plate, hinged with four hinges to said proximal pair of arms at a second hinge point; a distal pair of arms, hinged with four hinges to said gear box at a first end, and a second end hinged with four hinges to said distal pair of arms; a gearing assembly hinged to said gear box plate, with a first gear attached to a first one of said proximal pair of arms and a second gear attached to a first one of said distal pair of arms, and a rotary saw, mounted to said second end of said distal pair of arms.