Prompt

Cardboard lends itself to different mechanisms compared to wood and acrylic. This mechanism combines aspects of the parallel linkage and eccentric cam. It also uses the springiness of cardboard as the returning force to bring the flag back down.

Learning Goals

1. Understand the basics of the cam and linkage mechanism. 
2. Apply your understanding of the mechanism to create a unique prototype. 

Instructions

Part 1: Template model

Using the template file (attached to this post), you will recreate the cam and linkage cardboard model. To complete the activity, you will need cardboard, scissors or exacto, and a dowel or a pencil. 

Part 2: Build your own version

Once you’ve completed the model, modify the pre-existing elements in at least one of the following ways:

a) change the movement of the mechanism, 

b) customize components, 

c) introduce a new add-on feature, 

d) propose a novel application.

Deliverables

Take photos of all your work. In the caption, make sure to describe the prototypes and explain your work process. Post your answers to the following reflection questions in the Responses tab above:

1. Did you find having a template useful? 
2. If you were to repeat this exercise, what would you do differently vs. the same?
3. Describe the parts you've modified from the original template.