Subject:
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Re: Draft of a new driver wheel
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Newsgroups:
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lugnet.trains
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Date:
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Tue, 28 Oct 2003 19:46:49 GMT
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Viewed:
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1677 times
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In lugnet.trains, Reinhard “Ben” Beneke wrote:
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Hi all!
In the past we have collected some demands we train heads have on driver
wheels. These have been requested several times at TLC so far.
Here comes the wishlist to make up a draft for a new driver wheel:
1.) technic axle center
2.) peg hole for connecting rods
3.) diameter bigger than set 7750 and smaller than set 396
4.) flange design similar to 9V wheels
5.) narrow gaps between two wheels
6.) distance between centers of two neighbour wheels in a “common” dimension
(4 stud / 5 stud / 6 stud?)
7.) running diameter dimension fitting to 9V and 12V wheel diameters
8.) wheel thickness higher than 9V and less than 1 stud (avoid contact
between moving rods and wheel)
9.) counterweight as “click-on” extra part, (if 2 moulds were possible)
10.) shape not 100% after real prototypes but kind of “legoish”.
11.) center stud with Legologo
12.) ((Extra wish -Additionally a wheel without flange (blind driver) should
be available.))
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I like these criteria, and since we’re talking about a MOLD not a part, color is
irrelevant, it can be molded in grey or black or red or whatever... I can live
with red as the first color run as long as we know another color is coming
behind it.
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***************************************************************************
Solution: A wheel in diameter of nearly 5 studs (1 plate distance between
neighbour wheels) as seen in the following pictures. A round 1x1x0.33 plate
can be placed in the center.
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(snipped the pics)
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The unofficial *.dat part-file of the wheel itself can be downloaded here>
The *.dat part-file of the counterweight can be downloaded here
*************************************************************************
A first draft of an engine with these wheels has been done here:
(click to enlarge)
************************************************************************
Question:
If only one single mould would be possible due to too low demand and high
costs for new moulds, what would you prefer: Should the counterweight be
included in that wheel-mould or not?
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Not.
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In case of only one mould being
possible, the users would surely obmit in blind drivers (since anybody could
easiely cut the flange off himself - better have a wheel with flanges than
not having it....).
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Agreed. And your test engine presumably would have a Dremel taken to one set of
drivers to turn them blind so it can make it around corners
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Any further importeant points I missed in my design? I have put quite a lot
of time into this “draft” to make this new part as usefull as possible. So
hopefully you have not a too big demand for a further change in design.
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The effort shows, very nice work! Thanks for sharing!
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Message is in Reply To:
 | | Draft of a new driver wheel
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| Hi all! In the past we have collected some demands we train heads have on driver wheels. These have been requested several times at TLC so far. Here comes the wishlist to make up a draft for a new driver wheel: 1.) technic axle center 2.) peg hole (...) (21 years ago, 28-Oct-03, to lugnet.trains, FTX) !!
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