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| April 2004: SEI Wind Turbine Manufacturing Workshop, Guemes Island, WA |
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| Darin Bird examines a 4 ft. machine built during the 2003 workshop. |
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| An Africa Wind Power 3.6m machine. The AWP 3.6 was designed by Hugh Piggott and is manufactured in Zimbabwe. |
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| An 8 ft. diameter machine built during the 2003 workshop. This turbine is mounted on an 80 ft. tower. Just below the turbine rotor there are two anemometers measuring wind speed. |
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| A view of the 8 ft. diameter machine built during the 2003 workshop. The tower is 80 ft. high. |
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| Hugh Piggott prepares to lower the 80 ft. tower that hosts the 8 ft. diameter machine built during the 2003 workshop. We performed the annual maintenance check on the machine. |
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| Hugh Piggott describes what to look for in an annual maintenance check. |
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| The 80 ft. tower is raised with the help of a ginpole (sticking up in the air), a truck, and people-power. |
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| Hugh Piggott begins a theoretical discussion on electro-magnetism. |
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| A jig used to make copper coils. |
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| Mathias Craig (left) and Reed Wendel (right) wind copper coils for the stator of the 8 ft. diameter machine. |
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| Mathias Craig places copper coils in the mould for the stator. Once the coils are in place they are wired together and then cast in resin. |
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| The stator for the alternator of the 12 ft. diameter machine is cast in resin. Fiberglass cloth is used on both the top and bottom of the mould to reinforce the casting. |
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| The completed stator for the 12 ft. diameter machine. |
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| Positioning 16 magnets on a steel plate for one of the rotors of the 12 ft. diameter machine. The magnets are placed with alternating pole orientations. |
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| Preparing the magnet rotor disc for resin casting. |
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| Lâl Marandin uses the arc welder to work on the hub mounting. |
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| Andy Gladish uses the arc welder to assemble the tail vane for the 12 ft. diameter machine. |
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| Lâl Marandin uses the bandsaw to give a blade its rough shape. The bandsaw is only used in the beginning when there is a lot of material to remove - after that more percise tools are used. |
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| Lâl Marandin and Darin Bird confer on the progress of a blade for the 8 ft. diameter machine. |
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| Hugh Piggott demonstrates the use of a draw knife. |
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| A blade for the 8 ft. diameter machine starts to take shape. |
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| Mathias Craig uses a plane to smooth out a blade for the 8 ft. diameter machine. |
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| A wood rose (in fact it is a shaving from a plane tool). |
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| Hugh Piggott uses calipers to measure the thickness of the trailing edge of a blade (Mathias Craig stares intently). In order to reduce drag and noise, the trailing edge is worked down to a thickness of less than 1mm. |
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| A blade for the 8 ft. diameter machine begins to take shape. |
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| Darin Bird takes a look at the twist that he is carving into this blade for the 8 ft. diameter machine. |
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| Hugh Piggott and Darin Bird discuss the required precision for the trailing edge of this blade for the 8 ft. diameter machine. |
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| Mathias Craig begins to assemble the 8 ft. rotor. |
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| Plywood covers for the 8 ft. rotor are measured and cut. The blades are then screwed into the covers and the entire rotor is mounted on the hub. |
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| Mathias Craig drives in screws to attach the blades together for the 8 ft. diameter rotor. |
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| From left to right - Hugh Piggott, David Lochtefeld, Lâl Maranin, Darin Bird, and Mathias Craig. Darin is holding the completed 8 ft. diameter rotor. |
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| Maurice Carney (left) and Humphrey Wong (right) mount the alternator for the 8 ft. diameter machine. |
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| The 8 ft. diameter rotor mounted to the alternator. |
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| The 8 ft. diameter machine is mounted to a dumptruck for some rudimentary testing. |
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| The alternator for the 12 ft. diameter machine is mounted to the wheel of a raised truck (Brian Faley doing the wiring). This rudimentary test gives a general sense of the power output at any given rpm. |
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| Lâl Marandin and Hugh Piggott check the test tower to see if it is ready for the 8 ft. diameter machine. |
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| The 8 ft. diameter machine almost ready to be raised - it is still missing its tail vane. |
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| The 8 ft. diameter turbine fully assembled and ready to be raised. |
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| The 8 ft. diameter machine raised and showing its designer tail vane. |
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| Reed Wendel proudly displays the cover for the 12 ft. diameter rotor. |
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| The alternator for the 12 ft. diameter machine undergoes some electrical testing. |
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| From left to right - Humphrey Wong, Lâl Marandin, and Doug Moser. The 12 ft. diameter rotor is at their feet. |
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| The 12 ft. rotor is mounted to the hub. |
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| The 12 ft. diameter rotor. |
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| Hugh Piggott, our intrepid leader, inspects the 12 ft. diameter machine. |
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| The workshop staff. From left to right - Brian Faley, Hugh Piggott, Ian Woofenden, Andy Gladish, B.J. Daniels, Michael McGuiness, Dan Bartmann, and Dan Fink. |
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:last updated - March 2007 |