Subject:
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Re: Tomcat for view
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Newsgroups:
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lugnet.general
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Date:
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Tue, 9 Mar 1999 08:08:57 GMT
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Viewed:
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1978 times
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On Mon, 8 Mar 1999 19:02:39 GMT, "Jeroen Ottens" <ottens@get2net.dk> wrote:
I think I have a hazy idea of what you described.
Or perhaps a "foggy" idea. :-)
It sounds simple, anyway.
My version is really quite simple, and I will try to do a mostly complete ldraw
version and post it. Better than trying to explain it verbally, which I really
suck at. :-)
Off the top of my head, I can only think of one piece that is missing from
ldraw, and I can fake that. Oh, and there is a Lego rubber-band required to
ensure the drag-link folds in the correct direction when retracting.
The whole assembly is primarily for "looks" though. It would hold a model up
just fine, but would not work well for rolling, as the wheel is not firmly
positioned, and would tend to swing around like a caster wheel.
-- Terry K --
> The main landinggear movement is controlled by three gears, 2 24 tooth
> normal gears and 1 24 tooth cam-gear (if that's the name of it). One of the
> 24 tooth gears is locked, the other is the driving one. They are placed
> opposite of each other with 2 studs space between them. The cam gear is
> positioned to connect both gears. If you still understand this:
> The axle of the cam gear is used to orientate the landinggear (confusing
> that gearing stuff). I have used some little technic pieces to make a 360
> degree ball-joint in between the two normal gears and voila, when you turn
> the driving wheel, the cam wheel will roll itself up and rotate at the same
> time.
> Now you still have to work out the problem of making it turn so that the
> wheel is on top of the landinggear when retracted, and you have got to fix
> the axle of the fixed gear to make sure that the landinggear is pointed
> straight to the front when in standing position, but that's even more
> details.
> I hope you understand it, otherwise I should get myself some time to reload
> (I accidently plugged the drain on my harddisc lately) all the LDRAW stuff
> and draw it.
> This configuration works well, but it doesn't look like the real thing. So
> Terry can you explain or show me how you did it?
>
> Happy building
>
> Jeroen Ottens (private mail)
>
> PS This (private mail) message doesn't appear all the time. This doesn't
> mean the message is suddenly approved of by my superiors. It mainly means I
> forgot to enter it. I think more official messages can be recognized when
> they do appear.
>
> Terry K <legoverse@geocities.com> wrote in article
> <36e370ae.575290@lugnet.com>...
> <snip>
>
> > I would like to see a detail of how you did the main landing gear. When • I
> > started my (aborted) attempt at an F-14, that is what I started with. • Mine
> > worked very well, rotating 90 degrees as it moved up into the wing root, • but it
> > was not suspended. Mine works very similar to the real thing, as I • tried to
> > copy the actual thing using a type of draglink to perform the rotation.
> > I still have it together, on the off chance that I may someday get • inspired to
> > continue with the project. :-)
> > My idea was to go for looks, rather than function as you did. So
> > mechanically, all I was going to do was the main and nose gear, and the • wing
> > retraction. My idea was to have the landing gears and the wing sweep to • be
> > manually operated by rotating the engine tail cones. I figured they • would make
> > good crank handles. :-)
> >
> > I suppose I should LDraw the gear assembly (if the pieces are available)
> >
> > -- Terry K --
> >
> >
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Message is in Reply To:
 | | Re: Tomcat for view
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| The main landinggear movement is controlled by three gears, 2 24 tooth normal gears and 1 24 tooth cam-gear (if that's the name of it). One of the 24 tooth gears is locked, the other is the driving one. They are placed opposite of each other with 2 (...) (25 years ago, 8-Mar-99, to lugnet.general)
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