		39-245 Rapid Design through Virtual and Physical Prototyping Carnegie Mellon University Spring 2009

Save the Egg

Scoring Sheet

Control Engineer: ___________________________________________

Materials/Cost Engineer: _________________________________________

Industrial Designer: ____________________________________________

1. Egg integrity 50 points for no breaks or cracks 35 points for just a crack 20 points for cracked, but still together 0 points for a smashed egg	_______/50
2. Material Cost: unused µ*2	________/26 max
3. On target 15 points for a bull's-eye 10 points within 1 feet of the bull's-eye 5 points within 3 feet of the bull's-eye -10 points for hitting the stairs or the railing	________/15
4. Egg holder aesthetics	________/10
Total	________/101

Your mission, should you choose to accept it (actually, you don't have much choice), is design an egg holder to protect an egg dropped from the top of the stairwell to the floor below. You will have 45 minutes to design and build your egg holder. Whatever you have ready 45 minutes from now will be dropped. The holder needs to protect the egg from cracking. You must work efficiently with your teammates to build your egg holder with the limited material available.

Instructions: Control Engineer

In addition to the common goal of preventing the egg from cracking, you have the added responsibility of getting the egg-holder to hit the target. Your team will get 15 points for a bull's-eye, 10 points for getting within 1 foot of the bull's-eye, 5 points for getting within 3 feet of the bull's-eye, and 10 points for getting within 3 feet of the bull's-eye. You will lose 10 points if the egg hits the stairs or the railing (and you will have to help clean up).

Instructions: Materials/Cost Engineer

In addition to the common goal of preventing the egg from cracking, you have the added responsibility of minimizing the cost of material. You can purchase materials from the instructor using mus (µs -Monetary Units). You have a maximum budget of 36 mus. A price list for different materials will be available at the beginning of class.

All purchases are final. No Exchanges or Returns.

Instructions: Industrial Designer

In addition to sharing the common goal of preventing the egg from cracking, you have the added responsibility of making your egg holder as aesthetically pleasing as possible. The more pleasing your egg holder is to the eye (before being dropped), the more points your team will receive.

Click here for the materials cost sheet.

sfinger@ri.cmu.edu