What's the chances of someone throwing his wine rack up on comparator and
measuring the frequency and amplitude of it. The man said he had AutoCAD.
Those curves can be drawn in about a minute. Close enough for a wine rack.

"Guess who" wrote in message
news
On 18 Feb 2006 06:59:47 -0800, wrote:

I'm making a wine rack:

http://www.uniqueprojects.com/projec...k/winerack.htm

and I was wondering how to lay out that sine curve on the piece of wood
to cut it.

For future reference, if you want a real sine curve, and not an
approximation [within the bounds of the tools and shaky hands] use a
math program like Graphmatica, then copy/paste into a word processor
or image editor for printing to the scale you want/need.

Graphmatica is shareware, but free for those who can't afford it [so
just use it if you can't.] PhotoFiltre , or "The Gimp" are freeware
image editors. OpenOffice is a great free office suite with a
wordprocessor and spreadsheet and much more.

If you do it intelligently, you can do it to suit your project scale.
One hint: in Graphmatica type in y = sin(x) for the unit sine curve,
and you might want to change the default colours to black and white.
You can change the equation if you want varied results; something like
y = 3sin(x) or y = sin(3x) or whatever. You likely don't need that
though.

Or, any basic trig text shows how to draw it from the unit circle.