A fabrication system comprising: a plurality of rollers (48a, 48b, 48c) positioned relative to one another to bend a continuous strip moving in a rolling direction through the plurality of rollers (48a, 48b, 48c) into a curved form having an edge-to-edge abutting relationship of a first edge region and a second edge region of the continuous strip along a spiral joint; at least one sensor (41a, 41b) arranged relative to the continuous strip exiting the plurality of rollers (48a, 48b, 48c) to detect position information of the first edge region and the second edge region in the edge-to-edge abutting relationship along the spiral joint; one or more pushers (50a, 50b) actuatable to move relative to the continuous strip to impart a normal force to the continuous strip along the spiral joint; and a controller in communication with the at least one sensor (41a, 41b) and the one or more pushers (50a 50b), the controller being configured to receive, from the at least one sensor (41a, 41b), the position information of the first edge region and the second edge region, the fabrication system being characterized in that the controller is further configured to, based on the position information, determine whether the first edge region and the second edge region in the edge-to-edge abutting relationship match one another to within a predetermined tolerance in the rolling direction, and if the first edge region and the second edge region in the edge-to-edge abutting relationship do not match one another to within the predetermined tolerance in the rolling direction, actuate the one or more pushers (50a, 50b) relative to the curved form of the continuous strip to control an out-of-plane gap between the first edge region and the second edge region along the spiral joint, the out-of-plane gap reducing a deviation from a target relationship of the first edge region and the second edge region in the rolling direction. a plurality of rollers (48a, 48b, 48c) positioned relative to one another to bend a continuous strip moving in a rolling direction through the plurality of rollers (48a, 48b, 48c) into a curved form having an edge-to-edge abutting relationship of a first edge region and a second edge region of the continuous strip along a spiral joint; at least one sensor (41a, 41b) arranged relative to the continuous strip exiting the plurality of rollers (48a, 48b, 48c) to detect position information of the first edge region and the second edge region in the edge-to-edge abutting relationship along the spiral joint; one or more pushers (50a, 50b) actuatable to move relative to the continuous strip to impart a normal force to the continuous strip along the spiral joint; and a controller in communication with the at least one sensor (41a, 41b) and the one or more pushers (50a 50b), the controller being configured to receive, from the at least one sensor (41a, 41b), the position information of the first edge region and the second edge region, the fabrication system being characterized in that the controller is further configured to, based on the position information, determine whether the first edge region and the second edge region in the edge-to-edge abutting relationship match one another to within a predetermined tolerance in the rolling direction, and if the first edge region and the second edge region in the edge-to-edge abutting relationship do not match one another to within the predetermined tolerance in the rolling direction, actuate the one or more pushers (50a, 50b) relative to the curved form of the continuous strip to control an out-of-plane gap between the first edge region and the second edge region along the spiral joint, the out-of-plane gap reducing a deviation from a target relationship of the first edge region and the second edge region in the rolling direction. based on the position information, determine whether the first edge region and the second edge region in the edge-to-edge abutting relationship match one another to within a predetermined tolerance in the rolling direction, and if the first edge region and the second edge region in the edge-to-edge abutting relationship do not match one another to within the predetermined tolerance in the rolling direction, actuate the one or more pushers (50a, 50b) relative to the curved form of the continuous strip to control an out-of-plane gap between the first edge region and the second edge region along the spiral joint, the out-of-plane gap reducing a deviation from a target relationship of the first edge region and the second edge region in the rolling direction.