actuating components are preferably controlled via hydraulic or pneumatic valves which are controlled via the electronic controller preferred and alternative embodiments may utilize a plurality of interfacing elements between the controller and the pneumatic and electric components of the drives 54 68 104 128 168 and positioners 44 50 85 86 118 124 185 said interfacing elements may be electrical electromagnetic pneumatic hydraulic mechanical or combinations thereof as recognized within the art the program or source code which supports the controller and the interfaces may take a plurality of forms which are recognized by those skilled within the pertinent arts and is therefore described herein by the process and function of the assembly apparatus 28 as a whole it is further recognized that the controller is programmed to perform an operation for a particular size and shape of housing 10 and that said programming may be scalable and changeable the controller operates and controls the assembly apparatus 28 as hereafter described pursuant to the programming an operator positions a wrapper 20 and two panels 12 within the apparatus 28 whereby the wrapper edge flange 22 extending lips 23 seat with the blower housing guides 32 102 and the respective fixtures 56 130 may engage and hold each panel 12 the horizontal positioners 50 124 and or the base plate horizontal drive assembly 104 moves the fixtures 56 130 and or the right base plate assembly 30 whereby the fixtures 56 130 engage or disengage the panels 12 as preprogrammed within the controller preferably.