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In lugnet.technic, Dennis Bosman wrote:
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If I’m right, the motors of the driving mechanism are shown
here.
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No, the motor shown here drives the steering mechanism. The drive motors are
mounted on the bottom side of the main frame of the lower structure. There’s a
motor for each crawler pair. Have a look at these two pictures:
http://www.fhso.ch/~felber-b/pictures/mount09b.jpg
http://www.fhso.ch/~felber-b/pictures/mount10b.jpg The drive assemblies can be
seen on both of them.
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How is it possible to drive the model? I mean, when it’s huge, it’s also very
heavy :) And why did you use belts?
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The belts I always use in the first stage of the geartrain. There the momentum
is still small enough that rubber belts are able to transfer it. But with these
high speeds delivered by the motor, gears often transform themeselves into a lot
of grey dust if they don’t engage absolutely perfect, means if there is a slight
difference in the angle of the two axles relative to each other. This is why I
use rubber belts. But as mentioned above, the picture shows the steering
mechanism. The finished model could not move under its own power because it was
just simply too heavy. Read more about this and other problems I encountered
during construction in the story on my homepage.
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The interior is very
well detailed. Did you had any photos of it? I can imagine it’s hard to find
any info about such machinery, but while you very into mining equipment you
may have your contacts. I always like it when people put a lot of time in the
inside of a model. Most times they only pay attention to the exterior. Then a
model a model isn’t finished is my opinion.
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It is my opinion as well. A model in this scale really has to have a detailed
interior. Unfortunately I didn’t have any good pics of the inner works of the
real Mountaineer. Therefore I had to guess what lies under the elevated gallery
at the back end of the machinery house or on which side lies the door that leads
to the elevator cabin. All I knew was the general layout of Marion stripping
shovel machinery houses.
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I also saw you used a
large gear. I guess it’s
quite an old piece. Hopefully I can find some on Bricklink while I’ve plans
to build a Menck M154. I didn’t knew such pieces exist. Thanks for showing it
:)
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Well, I first saw these gears when I received a huge collection of old gears
(the red, blue and yellow ones that go togheter with the old chain links with
two studs on each link) I exchanged for some old 12V train stuff. I then found
out that these gears are called Samsonite gears and seemed only to be available
in the US. In Europe the above mentioned three sizes of gears were available.
The Samsonite gears include the small white ones, some bigger yellow ones, blue
ones and the 42 tooth red ones, used on my model. I only have two of the red
ones and five of the white ones of which four were used on the Mountaineer.
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On such a huge model you can use the
motor cycle wheels. It’s
only a shame they’re white, but does it bother it anyway? The idea of the end
fittings of the ropes is well found!
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I already used this solution on my early mining shovel
http://www.fhso.ch/~felber-b/shovel1.htm and on the P&H 4100TS
http://www.fhso.ch/~felber-b/shovel2.htm (they can’t be seen on the pictures)
as well as on the Bucyrus Erie 1050B http://www.fhso.ch/~felber-b/shovel3.htm
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The mast looks very sturdy. When the gantry is rather high placed it
shouldn’t be any problem to luff it. Very nice to show on modelshows!! (any
idea of showning it and demonstrate it during the
Modelshow Europe???).
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I really don’t dare to tell, but the Mountaineer doesn’t exist any more. After I
took it outside the house to take some pictures I didn’t wanted to take it all
the way back - there were several stairways - so I brought it in the cellar
where only three steps of a stair were to be descended. There it met its fate -
I disassembled it and therefore was able to determine the weight of 26.7 kg of
LEGO parts and 2.6 kg of counterweight, resulting in an overall model weight of
29.3 kg.
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The decals looks very
professional. Did you made them yourself?
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Yes, I did. I designed them after pictures of the real machine on a desktop
publishing program, printed them onto quality paper, cut them out and then glued
them with rubber cement onto the model. Rubber cement doesn’t hurt ABS and
allows to move the decals while the glue hasn’t dried.
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I just send the link to the people of the HHCMC. I’m
the treasurer of the club. Four times a year we make our own club magazine.
Because the club exist 10 years next year, someone had the idea to make four
‘specials’. One of those specials will be a ‘LEGO special’. Because your
model is so special, I would like to know you would like to cooperate. If
other enthausiast has some very interesting heavy equipment built of LEGO and
they like the idea as well, just send me an e-mail. Maybe Jennifer would like
to see her DEMAG in our magazine? Everyone liked it during the Modelshow
Europe. So Beat, just let me know if you would like to visit the show :)
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Dennis, let me assure you that I really would like to have my Mountaineer
featured in a printed publication. It is a model I am really proud of and
therefore I am willing to share its details with everybody seriously interested
in it. I propose you send me a mail when you will have detailed information
about the magazine and I will help you with providing pictures and descriptions.
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