Exercise 5: Pulley.
A pulley is a wheel placed on a shaft that is used to lift heavy weights easily by pulling from a cable or rope. The wheel of the pulley must have a hole to introduce the shaft and a groove for the cable.
This exercise will consist on designing the wheel of a pulley with the dimensions indicated on the right.
For the design you must take into account that the figure is a solid of revolution. This means that it can be formed by rotating a flat shape around an axis. The picture on the right shows the 2D shape that generates the wheel of the pictures above. You must also consider that the diameter of the hole for the shaft must be 40mm.
