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Abstract

The Smart Cart design project's result is the implementation of a new and improved concession cart for Bernie Levy of Zane middle school. The cart will allow him to more efficiently transport goods and snacks from the cart's storage and loading zone to the outdoor area where kids will purchase such goods. Pending.

One paragraph summary of your project from background to discussion and next steps.

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Background

Bernie Levy at Zane Middle School in Eureka has employed our project design project group, The Concession Cart Crew, to solve an issue within the concession cart system that the school currently uses to sell snacks during their daily break. He presented criteria that he expects us to implement into the design of a new concession cart. His main goal is for it to be a dependable and efficient way to transport snacks and goods across the school campus.

Problem statement and criteria

Our clients biggest concern for the new cart is the noise level that it will make when being pushed across the campus and past classrooms. Other criteria that our client is concerned about is: handles for easy transportation, the weight of the carts being too heavy for students to push, the strength of the shelves on the cart not being able to withstand the weight of the supplies being sold, reducing the four carts they have now into one or two, creating lips around the shelves so that objects will not fall off, creating cushions on the perimeter of the cart to prevent damaging doorways, and creating a cover for when the carts are being stored.
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Description of final project

Pending

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Costs

Quantity Material Source Cost ($) Total ($)
1 Road sign shelf (3'x2') Arcata Scrapyard 5.45 5.45
4 Road sign shelf (1.5'x2') Scrapyard 2.76 10.90
1 Wire rack Scrapyard .50 .50
1 Plywood (2'x4'x1/4") Ace 17.55 17.55
25 Fender washers (1/4)" Mill Yard by lb 1.00
2 Hinges Ace 6.00 6.00
1 Lumber (2"x4") Mill Yard 4.76 4.76
1 Lumber (2"x2") Mill Yard 5.60 5.60
1 Slot Angle Post (1.25"x1.25") Ace 35.00 35.00
100 Screws Mill Yard 4.18 4.18
3 Tire Inner tubes Revolution Bicycle Repair 0.00 Donated
1 Bedsheet Arcata Hospice 4.00 4.00
Total Cost $96.39

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Testing Results

Upon completing the carts construction, we came across a few unforeseen errors. These technical faults included: an ungrounded wheel; paint that wasn't willing to dry; sharp, protruding corners; and overly lengthy screws that kept the carts extendable shelves from collapsing completely. To solve the problem regarding the uneven wheel, a quarter inch wooden square was implanted above the problem wheel which let it contact the ground, thus allowing the cart to roll at maximum efficiency. What we originally thought was regular black paint turned out to be an oil based paint that still wasn't dry a couple days after its application. The solution that we've decided on is to dab up remaining oil paint with cotton balls and then re apply a coat of normal, dry-able paint. As for the sharp corners, we've sanded them a rounder, smoother edge to maximize safety. The most appropriate solution for the extra screw length is to sand down their ends to allow the shelf to fold down parallel to the carts walls.

How to build

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Pending

Discussion and next steps

Pending

References

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