Abstract: This specification discloses a mechanism that alters the cutting angle of a motorized miter saw. The cutting angle is altered by a mechanism that deploys a member from within or behind the fence to a position in front of the fence parallel to the blade and partially within a cavity/opening in the material resting surface. When deployed in front of the fence, the angle between the blade and cutting material is altered.

Abstract: This specification discloses a mechanism that alters the cutting angle of a motorized miter saw. The cutting angle is altered by a mechanism that deploys a member from underneath the cutting material resting surface to above the cutting material resting surface. When deployed above the cutting material resting surface, the angle between the blade and cutting material is altered.

Abstract: A power saw that has a device that allows for small changes in miter angles, where the small changes in miter angels can be made quickly as well as removed quickly. Additional the device makes it clear whether the angle adjustment is or is not in place.

Abstract: An device that allows air flow while attenuating sound for the purposes of allowing air to flow between rooms in a structure such as a house or building. The device consists of an air passageway that attenuates sound and covers at each end of the passageway. The covers allow air flow while providing an aesthetically pleasing appearance. Multiple embodiments support pre and post construction scenarios as well access to the interior of the device for cleaning purposes.