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 Pictured:A group of several hundred automated mirrors in a grid direct sunlight to a central receiver tower. The robotic mirrors are powered by the photovoltaic array.
Welcome to the Open-Source Heliostat Array Project! We are developing all of the technologies needed to construct a small solar power-tower heat source, and then publishing them into the Creative Commons. The project is broken into four key publications: Motor, Heliostat Mirror Machine, Controller Electronics, and Software for tracking the sun.
 Pictured: A prototype miniature heliostat uses two motors to move a single shatter-resistant mirror.
Each document gives step-by-step instructions for building simple embodiments of the technology. Readers are encouraged to adopt, adapt, and to re-publish their own versions, in accordance to the terms of the Creative Commons Attribution-Share Alike License.
 Pictured: A completed weatherized stepping gearmotor, as detailed in publication #1 below. These motors will be used to drive the mirrors.
*We are pleased to announce the release of our first publication: The OSP-M1 weatherized stepping gearmotor, which will become the workhorse for our miniature heliostats. Download the publication below and build your own. (There are also assembled motors for sale below, in case you want one or several hundred to experiment with!)
Open-Source Heliostat Array Core Technologies:
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Download Publication #1
(OSP-M1 Motor, 1.6 MB PDF) |
Currently In Development
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Currently In Development
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Currently In Development
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The technical documents published above are hereby published under the terms of the Creative Commons Attribution-Share Alike 3.0 License. You may freely use the content to build your own projects, which you may sell. You may also modify the contents and re-publish them, provided you attribute The Open Sun Project. Please follow this link to read the full terms of this license: Creative Commons Attribution-
If you have adapted this design, and wish to post it on the Open Sun Project website, please contact David Hartkop at dave@opensunproject.com.
Purchase Products from This Project:
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Assembled OSP-M1
Weatherized Stepping Gearmotor
Purchase this motor pre-assembled and tested, and use it for your outdoor solar and robotics experimentation. A perfect out-of-th-box solution to moving mirrors, solar panels, telescopes etc!
Features 10,000 steps per revolution resolution, rain and dust proof, high torque, repeatable motion.
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Kit for OSP-M1
Weatherized Stepping Gearmotor
This kit includes all the components to needed to assemble a working OSP-M1 motor. Ideal for classroom projects in engineering, solar technology, and computer science applications.
*Kit builders will need to purchase glue, silicone caulk, and paint supplies separately.
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Printed Version of the OSP-M1 Weatherized Stepping Gearmotor Publication
Comb-bound full-color printed manual for assembling the OSP-M1 Weatherized Stepping Gearmotor. This publication includes notes for suppliers, example schematics for motor drivers, and notes for programming stepper motor drivers. 20 page booklet including cover and contents.
Price: $12.50
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Open Sun Project Official Coffee Mug
A lovely coffee mug showing your support for the Open Sun Project! Use it while assembling motors, tracking mirrors, or contemplating the vast potential of solar energy! (Black with Yellow Interior).
Price: $8.00
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Open Sun Project Official T-Shirt
Show your support for the Open Sun Project with this stylish cotton T. Be the envy of your fellow tech-savvy DIY hipster friends!
Price: $18.00
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