Abstract: A template holding jig for holding a template for use with a router for routing a workpiece is provided. The holding jig may also be part of a workpiece joining jig that includes a plurality of templates. The template holding jig includes a template support, a workpiece support and a template guide. The template support defines a template support plane. The workpiece support defines a workpiece support plane extending perpendicular to the template support plane. The template guide defines at least one abutment preventing motion of a template located on the template support parallel to a first axis being parallel to the workpiece support plane and parallel to the template support plane. The at least one abutment permits motion of the template parallel to a second axis being orthogonal to the workpiece support plane and perpendicular to the first axis and parallel to the template support plane.

Abstract: A heating and cooling system for an enclosure includes a positionable solar panel assembly that supplies power to all the power consuming components of the system. A mountable sun tracking assembly continuously detects the position of the sun and adjusts the position of the solar panels to follow the movement of the sun during the day and to reposition the solar panels in the evening to receive the morning sun the following day. One or more ventilation assemblies mountable in one or more openings in the enclosure controllably supplies heated or cooled air into the enclosure, evacuating inside air, re-circulating inside air, and/or circulating outside air in response to control signals from the sun tracking assembly. A control box mounted inside the enclosure selectively controls operation and testing of the system. A dome is provided as an aesthetic covering for the ventilation assembly.

Abstract: A heating and cooling system for an enclosure includes a positionable solar panel assembly that supplies power to all the power consuming components of the system. A mountable sun tracking assembly continuously detects the position of the sun and adjusts the position of the solar panels to follow the movement of the sun during the day and to reposition the solar panels in the evening to receive the morning sun the following day. One or more ventilation assemblies mountable in one or more openings in the enclosure controllably supplies heated or cooled air into the enclosure, evacuating inside air, re-circulating inside air, and/or circulating outside air in response to control signals from the sun tracking assembly. A control box mounted inside the enclosure selectively controls operation and testing of the system. A dome is provided as an aesthetic covering for the ventilation assembly.