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Activity 2.2– Mechanical Gears
Purpose
What do a bicycle, eggbeater, and Polaris pool cleaner have in common? They all use gears to increase, decrease, or redirect power. Gears come in all sizes. A mechanical wind-up watch has very small gears, while the gears used to lift a bridge to allow ships to pass underneath are huge. There are different gear configurations that are used for different purposes.
In this activity, you are going to build ten different gear assemblies and observe how they are used. This information is going to come in handy when your class designs and builds its automated factory assembly line.
Equipment
· Engineering notebook
· Fischertechnik base plate
· Fischertechnik parts
· Digital camera
Procedure
Complete the following assemblies using the Fischertechnik kit provided. You may vary from the original design as long as the finished product still performs the same desired outcome. Have your teacher initial your checklist after you complete each assembly, and then answer the questions beside the diagram in your engineering notebook before going on to the next mechanism.
If you are provided with a digital camera, take pictures of each of your completed assemblies and place them in your notebook.
