A Mechanical Dissection Laboratory using KitchenAid Mixers

Abstract

This paper presents the development of a Mechanical Dissection Laboratory at Dalhousie University using KitchenAid stand mixers. In addition to a reputation for durability, the mixers are very well designed mechanically, and thus serve as an excellent teaching tool for Machine Design. The mixers contain a large number of robust and relevant components, covering almost all of the topics discussed in most Machine Design courses. In this lab students are introduced to topics such as electric motors, planetary gears, helical and spur gears, worm gears, bevel gears, shafts and couplers. Students work in small groups of approximately three; they are provided with a tool kit, as well as a disassembly manual. After a short safety introduction, the students disassemble the device, taking measurements as they proceed. They then re-assemble the device, and test that it is in complete working order.