Shouldn't this be in yak?
Does this projector need to actually work or would it be more for demonstration purposes? If it doesn't have to work, who said it has the be exactly to scale? Just make it a multiple of the real size based on the size of the blocks you are using.
If you want it to actually work, why don't you just make the frame out of legos and put real projector parts in where you need them?
1999
(72nd Academy Sci-Tech Awards)
Award of Commendation
Special Awards
Barry M. Stultz and Milton Jan
Friedman of FPC Incorporated
for the development and implementation of an
environmentally responsible program to recycle or
destroy discarded motion picture prints
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John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Eastman Kodak Company
Research Labs, Building 69, Room 7419
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Web site: http://www.kodak.com/go/motion

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The man with the magic hands.