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CJ_104628641-Visitor
1-Visitor
October 20, 2022
Solved

Unable to project curve onto sketch

  • October 20, 2022
  • 3 replies
  • 6475 views

This may be a somewhat silly question because I'm relatively new to Creo, but for some reason I can't project my equation-defined datum curves into a sketch. I have followed the support page for this exact process but when I try to select the curves for projection into my sketch, nothing happens and the curves aren't selectable in the modeling window. 

For reference, I am using Creo Parametric 7.0 and am trying to design something defined by epicycloid and hypocycloid curves.

Best answer by tbraxton

This is what you want to use the projection for? Unhide the layer with the curve and you should be able to see and project it.

tbraxton_1-1666295591517.png

 

tbraxton_0-1666295528201.png

 

 

3 replies

S
23-Emerald III
StephenW23-Emerald III
23-Emerald III
October 20, 2022

Are you trying to use an existing curve as a reference or are you trying to project on to a plane or surface?

I tested with a simple circle by equation and was able to use project in the sketch and I used Project in the model modifiers tab.

Did you test with something simple to make sure the process was good?

Maybe a screenshot would help or a link to the support page you were using would help

    C
    CJ_104628641-VisitorAuthor
    1-Visitor
    October 20, 2022

    This is the support page I was using: To Project a Curve into a Sketch (ptc.com)

    I am trying to project some existing datum curves into a sketch so that I can make an extrusion using them. I tried projecting them into another plane, using them as is, and pretty much everything I can think of and none of it has worked.

    This is where I run into problems when I follow the suggestions on the Creo support page: I select the curves and they don't show up so I can't use them.

    tbraxton
    22-Sapphire II
    tbraxton22-Sapphire II
    22-Sapphire II
    October 20, 2022

    If you are using a commercial license, can you post a model with the curve from eqn in it so we can investigate it?

    tbraxton
    22-Sapphire II
    tbraxton22-Sapphire II
    22-Sapphire II
    October 20, 2022

    I just tested this in Creo 7.09. I have a dtm curve from eqn feature in the model. I am able to project this curve in sketch mode for use within sketcher when creating a sketched datum curve.

     

    tbraxton_0-1666289010029.png

     

      kdirth
      21-Topaz I
      kdirth21-Topaz I
      21-Topaz I
      October 20, 2022

      I would guess that because your equation curve has "vertices" Creo cannot use is it in a projection.  You may need to create copies of individual cusps to use the projection feature.  You might also want to consider creating only one cusp and patterning it.

      There is always more to learn.
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