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| Size comparison (typical 1920's Meccano pose!) |
During the time that the Krupp 288
bucket-wheel excavator has been in complete form in my house in Grahamstown it
has attracted many visitors, from among both locals and visitors to our town,
as well as a fair amount of national and international media interest,
resulting in various articles and videos. A universal comment has been that the
model should be on display to a much wider audience. Our small town (with a
population of about 100,000) is an educational centre, with several schools, both
private and state, a university (Rhodes University) and Technical College and
is the centre of a farming community. Physical exposure of Bagger 288 is
therefore relatively limited.
Accordingly, I have decided to put
the model on the market, targeting museums of technology, mining, science,
toys, etc. I am prepared to pack the
components of the model in specially designed crates for safe transport by road
or sea. I am willing to consider any
reasonable offer as payment. Interested
parties can contact me as per information on this blog site.
Building Bagger 288 has been a
great challenge and very exciting to me.
One quickly forgets the tedium (and strain on hands and arms!) of making
tens of thousands of parts when one sees the end result come to life powered by
its 55 electric motors
I have thus decided to build
another excavator in replica Meccano, again making all the parts myself with
the help of the same people who supported my BWE! This time I want to build the Marion 6360 stripping
shovel, which worked in the Captain Mine in Illinois from 1965 to 1990. When it was built it was the largest land-based
fully mobile object in the world (this title was taken away by the German
240,000 cubic metre per day bucket wheel excavators – BWEs - like Bagger 288)
The principle of the stripping
shovel is completely difference from that of the BWE. In the former, a single large bucket is
rammed into the work face by a crowd mechanism, as it is known in the
industry. The Marion 6360 was the
largest such machine ever built, with an all-out weight about 1000 tons lighter
that the German BWEs. Only one was
built. It came to a sad end in 1990 when
a fire broke out, thought to have been caused by a ruptured hydraulic line
spraying into live electrical power boards. A substantial amount of grease had built up in
the lower works of the machine over the years and this burned fiercely for
about a day. The crew escaped unhurt but
fire teams were unable to extinguish the blaze because of the remote part of the
mine in which machine was working, and the difficult terrain. Immense damage was done and it was deemed
uneconomical to try repairing it. It was
scrapped din 1992.
My model of the 6360 will be on the
same scale as the BWE, 18 to 1, giving it a height of 12 feet and width of
about 4½ feet. Project mass is in the
region of 1000 to 1100 Kg. so it is slightly lighter than the BWE (at 1335
Kg). It also takes up less space that
Bagger 288 being a more compact ‘chunkier’ machine. The working length will be about 17 or 18
feet with dipper arm fully extended. It
will fit in a double garage which I have, which has a high ceiling (as does my
lounge). In fact I sold a collector’s
piece motor car, a BMW 3.0 CSL, in order to have the space to build the model
and finance it! I think Meccano models
are a more controllable expense than restoring old cars. I had planned to get the BMW into concourse
condition during my retirement by have decided that Meccano models are a bigger
challenge and more fun!
With funds from the sale of the car
I have been able to have all the parts for the 6360 laser cut at the outset and
thus negotiate good prices. The drilling
is going well (about ¾ complete) and the first of the eight crawler units is
complete and running. Most of the brass and aluminium parts have been turned as
well. I have included some photographs
of it as well as some new views of Bagger 288 taken by my wife from a different
angle. The Marion crawlers are larger than the BWE ones since there are only
eight as opposed to fifteen on the BWE.
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Below are pictures of the beginning of the new project: Marion 6360 crawler:
