[Part Name] Armature Assembly [Description] The motor and its components consisting of the Armature and a copper coil around the armature shaft [Manufacturing] the armature was made by milling and turning due to the precision need for the armature shaft to fit in the field casing and rotate freely without any friction. The copper coil is made by shaping and wound around the armature shaft. [Reason for Using Materials] Steel was used because it is a tough and strong alloy and can withstand the torque provided by the field assembly. Copper is used for the wiring because of the low resistance and to maximize the cost effectiveness. [Forces Applied] armature assembly is subject to torque provided by the field assembly. [Functional/Cosmetic] This part is purely functional as it is very important to move the blade. [Quantity] 1 [Complexity] 4 [Reason for Shape] 
The armature is cylindrical so that it can rotate freely and be place with ease into the field casing.