How do you create a flat spiral in PTC?

3D Design Volume Model
2

Hello

What version of PTC is it?

Here's a video of a tutorial for Creo: 

https://www.youtube.com/watch?v=dhq6Z_-CPUE

 

See also  :

A video in french: https://www.youtube.com/watch?v=cCQ68Cu85dY

Or two others in English:

https://www.youtube.com/watch?v=nMXgcWrgMfQ

https://www.youtube.com/watch?v=XYTT6qaIPfo

3

PTC Version 5

I'm looking to make a flat spiral starting from the center as for a "torsion" spiral spring

Thank you

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4

You have to use a curve from an equation.

http://fr.ptc.com/community/proewf2/newtools/fr/feature_creation_guide/part_four_sub/to_create_a_datum_curve_from_equations.htm

 

This video is more suitable then:

https://www.youtube.com/watch?v=0y7gqaEbnl8

Or even better, see this link which is a detailed tutorial:

http://www.meadinfo.org/2009/05/involute-curve-generation-with.html

 

Or an example of an equation:

Disc Spiral 1

Cartesian coordinates

/* Inner Diameter

d = 10

/*Pitch

p = 5

/* Revolutions

r = 5

/* Height; use 0 for a 2D curve

h = 0

x = ((d/2 + p * r * t) * cos ((r * t) * 360))

y = ((d / 2 + p * r * t) * sin ((r * t) * 360))

z = t * h

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5

Thank you all, problem solved

@+

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