Subject:
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Re: Transmission made from standard Technic parts
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Newsgroups:
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lugnet.technic, lugnet.build
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Date:
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Thu, 23 Dec 1999 19:22:29 GMT
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Viewed:
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3652 times
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Check my page. I have wanted to do the same thing, but didn't know how. So
I looked up a model in the encyclopedia and go the general idea. The
transmission I made doesn't need a clutch, because when it shifts, it has a
little delay between the gears.(a nice feature, but not built with it in
mind, it came when I was trying it). You can put pneumatics on it, and it
will shift for you. To see the page, go to
<http://www.lcs.net/users/oglewood/lego/trans.html>. It is in LDraw format,
and when you finish you can see the rest of my models.
--
Legoer,
Adam Ogle
G. Benedikt Rochow <rochogb@eng.auburn.removethis.edu> wrote in message
news:Fn25rs.Gu1@lugnet.com...
> In lugnet.technic, Greg Majewski writes:
> > Hello,
> > I am attempting to build my own version of a Super Car, and I need some • help.
> > I don't actually own a super car, and I only own one "large" Technic set. • So,
> > I'm asking for some general advice on how to make a two to three speed
> > transmission with just standard gears and axles. That's all. I have tried • a
>
> Similar to the 8860 and 8865 designs, here's a very simple and
> compact one:
>
> As a carrier, have two 'beams' with 3 holes with 1.5 stud spacing
> (i.e. 2 standard beams, any size, and a 1-beam between them)
> with 5 studs of space between them. In the center, put a
> 12-axle such that it sticks out 4 on one side and 1 on the other,
> while an 8-gear, a 16-gear, and another 8-gear are centered
> in the 5-wide space. On the longer end, you have 3 studs
> worth of axle for the shifter handle.
> On the outside holes, put (diagonally symmetric) 2 axles,
> length 8 or more, in such a way that they won't shift,
> with a 16 gear, one space, 2 8-gears, and another space
> on one side and reverse (sp,8,8,16,sp) on the other.
> Between these input/output axles, you now have ratios
> of 4,1,1/4. Using 24/8 gears rather than the above,
> you get 9,1,1/9; with 24/16, you get 9/4,1,4/9, which may be
> the best setup. This symmetric setup may be extendable,
> but it will get rather large, while having the center axle
> change ratios on both sides makes the design sturdier
> and close ratios generally easier.
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