Subject:
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Re: Monorail Max Mileage?
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Newsgroups:
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lugnet.town
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Date:
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Fri, 10 Mar 2000 01:52:49 GMT
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Viewed:
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1122 times
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In lugnet.town, Sanjay D'Souza writes:
> Todd Lehman wrote in message ...
> > In lugnet.town, Sanjay D'Souza writes:
> > > [...]
> > > - A curved track is 46 studs in length
> > > [...]
> >
> > I get 43.98... What value are you using for as a radius in the
> > computation?
>
> I read somewhere that the curved was 36cm's long. With each stud being
> about 7.8mm (7.8mm x 32 = 250cm (same size as a straight track)), therefore
> 46 studs = 36 cms.
Well, the curved monorail tracks aren't actually perfect circle segments,
because the stanchion holes in the middle don't fit into an irrational point
on the lattice, but they're not so far deformed from a perfect circle as to
give a value of 36cm for the axial length.
Try this: Using a 32x32 baseplate, measure the axial radius of a segment of
curved track. (It's exactly a whole number of studs.) Now multiply that by
2*pi to get the axial circumference of a circular rail circuit. Now divide
that by 4 to get the axial length of the curved track. What do you get?
(Also figure that the inner axial radius is about 1 stud less than the outer
axial radius -- because there are teeth on both sides of the rail. So the
monorail engine actually travels faster along curved track in one direction
than the other. :-)
--Todd
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Message has 2 Replies:
 | | Re: Monorail Max Mileage?
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| (...) Urrp, I misspoke. Not quite -- not the way the monorail engine reverses direction. It depends which way you place the engine onto the track -- the gold teeth on the motor on one side or the other of the rail. --Todd (25 years ago, 10-Mar-00, to lugnet.town)
| | | Re: Monorail Max Mileage?
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| I'd say forget the math and find the guy who did that elaborate pneumatics test with Mindstorms. He'd probably tell you to create a car that housed the RIS and hook the rotation sensor up to a wheel that rested on the track. Then you could keep (...) (25 years ago, 10-Mar-00, to lugnet.town)
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Message is in Reply To:
| | Re: Monorail Max Mileage?
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| Todd Lehman wrote in message ... (...) computation? I read somewhere that the curved was 36cm's long. With each stud being about 7.8mm (7.8mm x 32 = 250cm (same size as a straight track)), therefore 46 studs = 36 cms. Sanjay -- Millennium City @ (...) (25 years ago, 10-Mar-00, to lugnet.town)
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