Spirals 2

[spee]

I was looking to make a simple 2D spiral. I needed it to be about 6 loops. I made one using points and the spline command. The spiral did not come out perfect, seemed a little uneven. Is there a command to make a perfect spiral.

Thanks
Mike

 

[Adrian2]

Dear Mike;

I dont think AutoCad 2000 has any spiral commands but this web link shows a pretty comprehensive tutorial on making involutes or spirals.

http://www.math.nmsu.edu/breakingaway/Lessons/involute1/involute.html

Regards Adrian

 

[spee]

Thanks Adrian

 

[IYIeI2cY]

i have a spiral lisp u can load in your drawing so u can draw even 3d spirals if u like, i may b able to send it to by e-mail, so i will only need to know whats your e-mail


Pea$e

 

[masaflu]

You can get a 3D spring(sprial) by following the following steps:
1. Draw a donut.
2. Slice the donut along a diameter, keep both halves.
3. Rotate the two halves in opposite directions for an equal angle, let's say 10 degrees.
4. Array the result.

Good luck!