Parts List
2 x base plates 1
6 x long frames 2
6 x short frames 3
6 x short rods 4
4 x large gear wheels 6
4 x medium gear wheels 7
10 x small gear wheels 8
3 x small sprockets 9
3 x medium sprockets 10
1 x large sprocket 11
3 x long axle shafts 16
4 x short axle shafts 18
1 x engine shaft 19
1 x black cable 20
1 x red cable 21
1 x battery holder 22
1 x solar module 23
1 x solar engine 24
20 x anchor pins 26
147 x chain links 29
2 x attachment plates 27
1
Windmill with Wind Wheels
Power Over Great Distances
This very large model demonstrates how a chain
drive can be used to bridge great distances between
sprocket wheels. In this case, there are three chains
moving three wind wheels. The construction is by no
means simple, and it requires precise work.
The solar engine sits down below on the foundation,
which is made out of two base plates. At the back are
two large frames attached together. In each of these
frames, there is a small wind wheel. The first chain
drive turns the lower wheel. On the axle that turns
this wind wheel is another sprocket wheel, which
drives the other small wind wheel mounted above.
From that second small wind wheel, the power is
further transferred to a larger wind wheel mounted
higher on the front side.
So the large wind wheel is the one that is farthest
away from the solar engine. If you wanted to drive it
directly — without the axles in between, on the small
wind wheels — you would have to use a very long
chain indeed. But long chains can easily slip, and they
are not very sturdy. The little wind wheels have a tech-
nical purpose: They let you use shorter chains, and
thus help to ensure a more dependable operation.
The solar engine drives not only the large windmill wheel in front, but
also two small mill wheels on the rear side of the model.
1. Connect two base plates (1) with the help of the attachment plates
(27). Attach the engine (24) with engine shaft (19) and small sprocket
wheel (9) to the base plates.
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