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Folding tower. Makes it easy to maintain
or modify the windmill. Only takes a couple of minutes
to raise or lower using a 12v electric winch.
Big windmill during a very windy night. There are 3
100watt spotlamps pointed up, connected across the output.
Another early hub design. Back then I was concerned about strength so I tended to over engineer everything.
new set of blades. These were carved by Dennis Latham
of SA, and are a big improvement over my own blades.
for a video of new blades in action.1,280k
Close up shows the de-cogged stator and hub clearance,
photographed this monster in central Queensland. Blade
diameter is 8.2 meters ( over 27 feet ) ! Originally
from the Bungaban station, the mill was donated to the
Wandoan & District Progress Assc for restoration
and its now in the W.O'Sullivan Memorial Park
First ever VAWT windmill. These are strange
little things. Lots of torque and will start in a light
breeze, but this design has way to many moving parts!
The offset bearing for the VAWT. I got
the idea for this windmill from www.windstuffnow.com
VAWT fitted with a toothed belt drive and stepper motor.
for a video of VAWT in operation. 321k
first stirling engine. Runs on a cup of hot coffee
working stirling. These are fun to make and you learn
a lot about tolerances and friction trying to get them