Abstract: Systems and devices for cutting annular objects comprising a structure built from t-slot profiles and clamping devices where an vertically adjustable t-slot profile is connected with a cutting assembly comprising a worm gear that turns a cutting blade that cuts into an annular object, and drive wheels that turn the annular object at a much slower rate than the spinning rate of the cutting blade.

Abstract: Systems and devices for cutting annular objects comprising a structure built from t-slot profiles and clamping devices where an vertically adjustable t-slot profile is connected with a cutting assembly comprising a worm gear that turns a cutting blade that cuts into an annular object, and drive wheels that turn the annular object at a much slower rate than the spinning rate of the cutting blade.

Abstract: The invention comprises systems and devices for securely clamping and easily unclamping a first t-slot profile to a second t-slot profile. The clamping devices may move along a first t-slot profile, allowing the invention to clamp at different places along the first profile. The clamping systems and devices may be used for positioning a side-fence, connected with the second profile, relative to a saw blade, or for construction of a trade show booths, display assemblies, or other structures that may be securely clamped together, and easily unclamped.