Subject:
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Re: 2007 sets: Huge RC Bulldozer and Combine Harvester
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 16 Jan 2007 14:12:15 GMT
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Viewed:
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8662 times
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In lugnet.technic, Dave Curtis wrote:
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Looks like the small wheels used to form the bogies are a new
wheel, am I right?
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I don’t think so. the upper bogie looks like the backside of a small bevel gear,
while the lower bogie assembly looks like it uses this:
http://www.bricklink.com/catalogItem.asp?P=42610
The electrical connector is interesting. First, it looks stackable (there are
electrical connections on both the top and bottom of the 2x2... but obviously
not the old 9V system). But with four wires, hmmm... I’d say they have to be two
seperate power systems, not control systems (like encoders; mostly because I
can’t think of a good way to “stack” a two-way communication system). If so,
that implies one wire running two indepedant motors, so maybe that odd
cylindrical motor is actually two motors, back-to-back. So it may not be one
motor one tread, but one motor unit to drive both left and right treads.
Curious.
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(In addition to loads of other more obvious new parts.)
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Like the new driving sprocket for the new treads. I’m actually surprised at
that, as to why the ones in the snowmobile have no stablizing rims, while these
seem to. I like the idea of stabalizing rims... but as the snowmobile shows,
using the medium pulleys works great for that, so it’s odd that TLG felt this
was a need for a new mold.
--
Brian Davis
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