Created: February 17th, 2016

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Description

The magnetic crane is used in a two-player game that simultaneously teaches kids about the magnetic property of ferrous metals while engaging them in a game of trivia.


Player 1 starts by randomly arranging 15 metal squares and 10 wooden squares to form a 5x5 grid. Under the grid, there's an image related to a particular science topic. Player 1 picks the set of cards corresponding to the image and asks Player 2 a trivia question. If the question is answered correctly, Player 2 can pick up the corresponding square using the crane and place it in the back of the truck. Repeat for up to 3 trials or until Player 2 gets a question wrong. Then switch roles and continue asking trivia questions. The game continues until all cards are covered or a player correctly identifies the picture (which reveals itself over several trials).


Caution: If you answer a question that corresponds to a wooden block, the player will be unable to pick it up with the magnet. Continue to the next trial.

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CAD Prototype

We used SolidWorks to create a prototype model of the magnetic crane.
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Manufacturing Plan

Truck: The truck will be made of wood, with several metal components for wheels, axles, and the main crane. We'll use the machine shop to cut the main block of wood and use a router to shape the figure and the grooves. Wheels will be purchased and attached to the truck using axles. The crane will be cut into its shape using laser cutting. Two magnets will be purchased -- one large magnet will be embedded in the truck's carriage, and the other magnet will be attached to a string connected to the crane. A drill press will be used for all the holes. As the final step, the crank handle will be connected to the axle that will lower and raise the string as it is turned.

Picture Grid: As a structure that lays flat on the ground, the picture grid will be made of wood and cut into its shape using a router. Metal and wooden pieces will be placed into the squares of the 5x5 grid. These pieces will be encased in plastic.

Plastic Enclosing: The electromagnet is enclosed by a thin layer of plastic in order to increase safety of the toy. The case will have smooth edges such that it would not be able to cut the player, but also a thin enough layer so that the electromagnet can still pick up the metal blocks.

Images and Question Cards: They will be printed on laminated paper.

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The detailed spec sheet of the Magnetic Crane is attached as a PDF document below:

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39-245 Rapid Design through Virtual and Physical Prototyping

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Introduction to rapid design through virtual and physical prototyping. The class will cover the design process, problem solving methods, interdisciplinary team work, current industrial practice, an...more


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