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Unread 25-11-2008, 14:26
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Re: How many inches does my wheel go in one rotation?

Wow thanks guys ^^
I feel stupid now hehe
thanks for the help
peace
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Unread 25-11-2008, 14:30
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Re: How many inches does my wheel go in one rotation?

Additional input.

Take the distance per revolution, divide it by the number of ticks from the encoder per revolution of the wheel and you will get your distance per tick. With that information, you should be able to per determine how far to travel based on the number of ticks you desire.
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Unread 25-11-2008, 14:42
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Re: How many inches does my wheel go in one rotation?

Considering what time of year it is, make sure you use the correct value for "pi"
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Unread 25-11-2008, 15:26
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Re: How many inches does my wheel go in one rotation?

Quote:
Originally Posted by squirrel View Post
Considering what time of year it is, make sure you use the correct value for "pi"
I would suggest carrying out pie to more places.

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Unread 03-12-2008, 20:19
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Re: How many inches does my wheel go in one rotation?

Quote:
Originally Posted by kramarczyk View Post
I would suggest carrying out pie to more places.
I think you meant more pieces. Yes?
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Unread 25-11-2008, 15:27
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Re: How many inches does my wheel go in one rotation?

Quote:
Originally Posted by squirrel View Post
Considering what time of year it is, make sure you use the correct value for "pi"
Here is an alternate value for "pi". All of these yield the same result.
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Unread 25-11-2008, 15:49
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Re: How many inches does my wheel go in one rotation?

Quote:
Originally Posted by billbo911 View Post
Here is an alternate value for "pi". All of these yield the same result.
Just make sure you're not using too coarse an approximation of "pi".

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Unread 03-12-2008, 19:05
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Re: How many inches does my wheel go in one rotation?

Hey, That Pi R Square'd
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Unread 03-12-2008, 19:12
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Re: How many inches does my wheel go in one rotation?

Now I am hungry.

Thanks guys.....
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Unread 04-12-2008, 07:12
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Re: How many inches does my wheel go in one rotation?

Which brings up this old joke. A hillbilly finally sent his son into town to go to school, rather than relying on the old McGuffie Reader at home. In math they were studying geometry, the area of circles. But the boy didn't understand something. The teacher kept saying, "Pi R squared." The boy said, "Pie are round. Cornbread are square."
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Unread 09-12-2008, 21:23
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Re: How many inches does my wheel go in one rotation?

Well it's quite simple actually.

So we have the well known mathematical fact that the number of inches that a wheel turns is proportional to the square of it's radius (denoted r). This factor is \pi.

If you have a wheel of diameter 2n, r = n.

We thus have:

turning distance = \pi * r^2.

It's quite simple really. I think this is covered in the first few weeks of AP CALCULUS BC.
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Unread 10-12-2008, 07:49
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Re: How many inches does my wheel go in one rotation?

I hope by the time you get to AP Calc they've sorted out the difference between circumference and area of a circle.
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Unread 10-12-2008, 17:37
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Re: How many inches does my wheel go in one rotation?

But that is not sufficient, it is only necessary. You need to also
find the integral of the area of the torus with the locus of
\pi/(89^2) at you mean by area of the integral of the also find the to
find the integral of that is not sufficient, it is only necessary.
You necessary. You necessary and circumference. You have to find
the ind the int, it is only not sufficient, it is of the to find the
difference. You have to area an by area and circumference. You have
integral.

But that you mean by area and circumference what you have to also find
the integral of the also find the derivative of the area of the
triangle ind the derivative of the what you mean by area an by area
and circumcenter by area and chance. You mean by area of the torus with
the locus only area and circumference. You need the distance. You have
to find circumeference * area. You have torus withe hypothesis of the locus
of \pi/(89^2) . I'm not sure what is need to also find the integral.

But that integral of the hypothesis of the have to find the integral.

But that is not sufficient, it is with the locus of the triangle
integral.

Last edited by jkronstadt : 10-12-2008 at 17:39.
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Unread 10-12-2008, 17:47
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Re: How many inches does my wheel go in one rotation?

Quote:
Originally Posted by jkronstadt View Post
But that is not sufficient, it is only necessary. You need to also
find the integral of the area of the torus with the locus of
\pi/(89^2) at you mean by area of the integral of the also find the to
find the integral of that is not sufficient, it is only necessary.
You necessary. You necessary and circumference. You have to find
the ind the int, it is only not sufficient, it is of the to find the
difference. You have to area an by area and circumference. You have
integral.

But that you mean by area and circumference what you have to also find
the integral of the also find the derivative of the area of the
triangle ind the derivative of the what you mean by area an by area
and circumcenter by area and chance. You mean by area of the torus with
the locus only area and circumference. You need the distance. You have
to find circumeference * area. You have torus withe hypothesis of the locus
of \pi/(89^2) . I'm not sure what is need to also find the integral.

But that integral of the hypothesis of the have to find the integral.

But that is not sufficient, it is with the locus of the triangle
integral.

Just use pi*d. It is way simpler.
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Unread 10-12-2008, 21:24
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Re: How many inches does my wheel go in one rotation?

ah.
those are some pretty small wheels.
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