An exercise machine has at least one hollow column rotationally mounted between upper and base members of a frame. A pulley carriage is mounted inside the column in engagement with an internal track for travel up and down the track, and a cable linked to an exercise resistance extends through the pulley carriage before terminating at a cable pull attachable to a selected user engagement accessory. A pulley cover pivoted to the carriage extends partially out of a column opening and extends over one or more pulleys mounted in the pulley carriage.