Hi, I'm new to PF so this is my first post. I have a real case scenario as my first thread in which I have a gravitational tensioning system that provides tension to a cable conveyor. The tensioning system includes a series of pulleys in a particular reeving arrangement that is fixed on one side of the conveyor and reeves itself back to a counter weight system on the opposing side. I have attached 3 hand drawn diagrams inclusive of varying scenarios and calculations of my attempt to quantify the tension in the cable across 2 different conditions (when the counterweight is moving up and when the counterweight is moving down). I have incorporated a friction value in each individual pulley of 3% (denoted as x=0.03). Please let me know your thoughts and validity of my calculations and theories.