Abstract: The present invention is a specialized laser alignment tool for locating at least one roofing penetration point for a conduit installation. The specialized laser alignment tool is fixably mountable to and self-centering on an electrical hub and projects one or more roofing penetration points which are in vertical alignment with the electrical hub.

Abstract: The present invention is a specialized laser alignment tool for locating at least one roofing penetration point for a conduit installation. The specialized laser alignment tool is fixably mountable to and self-centering on an electrical hub and projects one or more roofing penetration points which are in vertical alignment with the electrical hub.

Abstract: A decorator press for printing on metal cans has a pump unit, a distribution head, a sensing device and a processing circuit. The pump unit comprises a plurality of inlet ports, a first inlet port configured to receive an ink of a first color from a first ink source and a second inlet port configured to receive an ink of a second color darker than the first color. The distribution head is coupled to the pump unit and configured to spread fluid received from the pump unit across zones of a print roller. The sensing device is coupled to the press and configured to sense a characteristic of fluid flowing out of the distribution head. The processing circuit is configured to receive the sensed characteristic, compare the sensed characteristic to a predetermined threshold, and to provide an indication to a display based on the comparison.