Abstract: An exercising machine with a direct drive to the weight stack is described. It comprises a support frame having a seat to accommodate a user person. A weight stack is provided and has a plurality of predetermined weight elements which are guidingly connected to a pivoting support platform. Restraining guide rods are secured to the pivoting support platform to permit the weight elements to be displaced therealong in a predetermined stack form. An elongated carrier rod extends freely through the weight stack and has a plurality of attachment holes along a prescribed length thereof. A connecting pin secures a selected one of the weight elements to one of the attachment holes of the carrier rod to form the predetermined stack. A pivotal connecting linkage is secured to the carrier rod and to a pivoting exercising frame engageable by a user person to perform an exercise.