Is it possible to pattern one PRT inside an ASM along a 3D curve?

[mhergenhan]

I can select planar curves only to pattern one PRT inside an ASM. But I need to pattern the PRT along the below shown 3D curve. Many thanks in advance for your help!

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[MartinHanak]

Maria,

in http://help.ptc.com/creo_hc/creo30_pma_hc/usascii/index.html#page/pma/part_modeling/part_six_sub/To_Create_a_Curve_Patte… in Step 3. you can find this sentence ... Select or create a sketched curve to define the pattern. This means that you can use Sketch feature as reference. 3D curve is not allowed.

Martin Hanak

[MartinHanak]

Maria,

you can try this....

1. place point on 3D curve and pattern it (Dimension pattern) to get requested locations
2. place coordinate system on 1-st point and pattern it (Reference pattern) to get assembly references
3. assemble part on 1-st coordinate system and pattern it (Reference pattern) to get patterned component

Martin Hanak

[mhergenhan]

Hi Martin,

many thx for your answer.

But to pattern a point I also need a sketched curve, or not?

BR

Maria

[MartinHanak]

Maria,

try it. If you place a point on 3D curve, Creo assigns a dimension to it, the value of this dimension belongs to interval <0,1>. If you set 0, then the point is placed in start point, if you set 1, then the point is placed into end point.

Therefore set 0 for point dimension and use this dimension to pattern the point along the curve.

Martin Hanak

[lsrutkowski]

Another option, if you know the point locations relative to a known coordinate system AND you are on Creo 2.0 or later, would be to pattern by point and use an "offset coordinate system" point feature as your reference for the pattern by point option. To make things easier, you could then place a coordinate system on the first point in the pattern and pattern that coordinate system as Martin recommended above.

[mhergenhan]

Many thanks for your answers.

I got it

Now I have a further question: Is it possible to rotate the part during the pattern along the points around his own axis?

[MartinHanak]

Maria,

to be able to reply to your question, I need to have detailed description of part rotation along the curve.

Martin Hanak

[James62]

Hello, as already stated above you can place coordinate systems onto those points using pattern feature, and that way define the orientation of the components.