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anegi5-Regular Member
5-Regular Member
Apr 4, 2023 7:10 AM UTC
Solved

Squircle shaped cylinder in creo

How to draw a Squircle shaped cylinder in creo.

 

 

 

 

tbraxton
tbraxtonAnswer
22-Sapphire II
Apr 4, 2023 10:04 AM UTC

Use the curve from equation functionality.

https://support.ptc.com/help/creo/creo_pma/r9.0/usascii/index.html#page/part_modeling/part_modeling/Example_Creating_a_Datum_Curve_from_an_Equation.html 

 

The parametric equations for a superellipse are used to define the geometry of a squircle. You can do this in Cartesian or polar coordinates.

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6 replies

tbraxton
tbraxton22-Sapphire IIAnswer
22-Sapphire II
Apr 4, 2023 10:04 AM UTC

Use the curve from equation functionality.

https://support.ptc.com/help/creo/creo_pma/r9.0/usascii/index.html#page/part_modeling/part_modeling/Example_Creating_a_Datum_Curve_from_an_Equation.html 

 

The parametric equations for a superellipse are used to define the geometry of a squircle. You can do this in Cartesian or polar coordinates.

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tbraxton
tbraxton22-Sapphire II
22-Sapphire II
Apr 4, 2023 11:33 AM UTC

I would evaluate the math on this as Creo represents the curves if you plan to use this as a cam profile. The curvature plot does not look right to me when using the Cartesian parametric representation of a superellipse configured to form a squircle shown in red.

 

 

 

tbraxton_0-1680607862300.png

 

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anegi5-Regular MemberAuthor
5-Regular Member
Apr 5, 2023 5:12 AM UTC

how to add equation for this curve?

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tbraxton
tbraxton22-Sapphire II
22-Sapphire II
Apr 5, 2023 9:14 PM UTC
Use the curve from equation function. The Cartesian equation of a superellipse is used to create the squircle.

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