Fixed or Course 1 pulleys have a fixed shaft. That is, the shaft is “set” or anchored in place. A mounted pulley is a drive utilized to adjust the direction of the rope (referred to as a belt due to the fact it helps make one particular flip). Set pulleys have mechanical benefits of set pulleys. Active pulleys or 2-phase pulleys have cost-free shafts. That is, the axis can shift “freely” in space. Relocating pulleys are employed to convert forces. Energetic pulleys have the mechanical advantage of two pulleys. That is, if 1 end of the rope is stationary, pulling the other end of the rope will exert 2 times the force on the item attached to the pulley. A composite pulley block is a blend of a set pulley block and a movable pulley block. Blocks – Blocks are composite pulleys where a number of pulleys are mounted on each and every axle, further introducing to the mechanical advantage. Pulleys can alter the route of the drive.