submitting challenge 4

Objective: https://drive.google.com/open?id=1drOleaZ3-dp5q9Wg8oqcPBVNNkgjNtIV steps to model the rear wheel 1)draw a 2d sketch 2)extrude 3)extrude cut 4)thin extrude 5)revolve 6)revolve cut 7)fillet 8)chamfer 9)linear pattern 10)mirror circular pattern https://drive.google.com/open?id=1c3ffLk25CuBB8sCne5huAeodz2_abt6z…