13 15 in tight sealing relation as plastic molding material is injected under high pressures into the mold members the molding material may be other than plastic e g a powdered metal and may be gravity fed or otherwise delivered to the mold within the scope of the present invention plastic injection molding and other forms of molding and casting can be used to make complete parts or components of larger products the term u201c object u201d as used herein is intended to refer to either complete parts or components which are assembled in a different manufacturing step s into the complete parts it will be appreciated that in fig1 and 1a the movable platen 7 is shown spaced from the fixed platen 11 a much greater distance than it would be in operation of the injection molding machine 1 so that the mold members may be better seen four guide rails 17 only three may be seen in the drawings connect the fixed and movable platens 7 11 and guide the movement of the movable platen relative to the fixed platen the static side machine element 9 mounts a liquefied plastic injection device 19 which melts a solid plastic source not shown and injects under pressure a predetermined quantity of the liquid molding material into the mold 3 after the movable platen.