P1.8 Create a model of the impeller shown in Figure P1.8A. An impeller is used

in a pump to increase the speed of a fluid. As the impeller rotates, fluid

entering through the hole in the front plate is propelled outward. Begin by

creating the back plate, hub, and center hole (for mounting onto a shaft), as

shown in Figure PI.8B (all dimensions are mm).

FIGURE PI.8A

FIGURE P1.8B

-Ø20

30-

150 050-