Project Mechanism Experiments

The chosen summer 2011 project for 2498 and 3630.

Objective
Build and experiment with many different small-scale mechanisms.

Technical Objectives
The results of each mechanism experiment should be well-documented so teams may use the information to guide design decisions in the future. In order to achieve this goal, the documentation should address:
 * How the mechanism works
 * Advantages
 * Disadvantages
 * Drawings of the test mechanism
 * Any challenges encountered while building the test mechanism

Linkages
One type of mechanism is linkages. They form a huge classification of mechanisms, including:
 * Parallel motion
 * Reversed motion
 * Bell crank
 * Push-pull
 * 4-bar (many different types)
 * Straight Line (6 types)
 * Singular
 * Quick-Return
 * Crank and Slider
 * Snap Action
 * Function Generators

Gears
Gears transfer power between shafts. There are several types of gears:
 * Spur gears
 * Bevel gears
 * Planetary gears
 * Helical gears
 * Rack and pinion
 * RachetsImage_010.png

Cams
Cams are a useful mechanism capable of turning simple rotational motion into complex translational motion. There are many types of cams:
 * Internal (a broad classification)
 * External (a broad classification)
 * Escapements (at least 4 types)
 * Scotch Yoke
 * Function Generators
 * Barrel (3D) Cams
 * End Cams

Indexing Mechanisms
Indexing mechanisms turn continuous motion into intermittent motion. These types of mechanisms can be constructed using any combination of gears, cams, or linkages.
 * Geneva mechanisms (3 types): Geneva Drive
 * Mutilated gears
 * Cycloidal gears
 * Cams

Monocoque Structures
Monocoque structures are structures which use a thin "skin" to carry loads. This type of structure is usually made of sheet metal or Polycarbonate.

Other
There are many other types of intersting mechanisms which may be investigated:
 * Rigid chain actuators
 * Chain fingers
 * Auto-tensioning pulleys
 * Custon gears
 * Swashplate
 * Irises