Bottom front
This pic is a view of Archimedes from the
bottom front. The cylinder is mounted with
2h x 1h angle brackets on to a 4" circular
plate that is itself mounted on a Ball Thrust
Bearing separated by washers and spacers
as necessary.
The gearing is designed to rotate the cylinder
about once every five seconds and to this
end I used one of my small DC motors that
rotates about once a second on 12 volts.
I picked up four of these motors from Bull
Electrics some years ago and since the output
shafts were not Meccano standard I got Mike
Dennis to turn me up some small pulleys
and shaft adapters to fit. Thanks Mike.
In the pic, a white ball, which has just
finished rotating around the base, has been
forced against the guide rails by a pink
ball and is about to start its journey upward
being caught by the starting slope of the
Archimedes screw. The pink ball is resting
on the slope of a 3h x 3h x 1h flanged plate
set at an angle inside the cylinder. This
flanged plate is better seen in the next
pic.
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