Topic: PLTW Marble Sorter
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Answers to Common Questions
How to Build a Marble Sorter
There are two main types of marble sorter: enclosed cylinders with decreasing diameter holes, and chute-style sorters. The cylinders are shaken until the various sizes of marble settle to the correct levels and into the hollows. Chute style... Read More »
Source: http://www.ehow.com/how_4884346_build-marble-sorter.html
How do you make a marble sorter using Fischertechnik?
with your hands and a computer Read More »
Source: http://wiki.answers.com/Q/How_do_you_make_a_marble_sorter_using_F...
How can a control system be designed to make a marble sorter func...
To expand upon Lex's answer: As far as the sensors go, you can either use a white light source and a color sensor or a colored light source and a monochrome sensor (i.e. a simple photocell). The latter is probably easier and cheaper to impl... Read More »
Source: http://answers.yahoo.com/question/index?qid=20111104180914AAE9uHK
