A sewing frame unit is provided. The sewing frame unit includes a frame support structure; a frame assembly affixed to the frame support structure; a machine carriage assembly mounted on the frame support structure. The machine carriage assembly provides for lateral and longitudinal movement of the sewing machine. A sensor is mounted on the machine carriage assembly or on the frame assembly for detecting a position of the sewing machine.

A quilting frame unit for supporting a quilt core to be sewn by a quilting machine includes a frame support structure and a frame assembly. The frame support structure is adapted to support a machine carriage assembly that provides for lateral and longitudinal movement of the quilting machine. The frame assembly is affixed to the frame support structure.

A quilting frame unit for supporting a quilt core to be sewn by a quilting machine includes a frame support structure, a frame assembly, and quilt core retention members. The frame support structure is adapted to support a machine carriage assembly that provides for lateral and longitudinal movement of the quilting machine. The frame assembly is affixed to the frame support structure. The quilt core retention members are configured to selectively couple with the frame assembly with the quilt core draped over to retain the quilt core to the frame assembly.