90° circular repetition

Hi all 

On this Monday morning, I have a small problem in my design. I try to make a circular repetition of my function (removal of material between 2 planes to make a non-penetrating groove), at 90° and it doesn't work and I get the error message: "The specified plane must not be perpendicular to the sketched plane"!

Anyone have an idea(s)? It works well for 91°, 89°, but not 90°!

Thank you


repet_90deg_-_enlevement_matiere.jpg

Hello

It seems to me that this is normal because the material removal rotation intersects. You would have to make the circular repetition in the sketch of your material removal and adjust in the middle where your 3 sketches will intersect it.

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Hello

Have you tried to do a single "branch" and a 4x repeat?

Do you ever know it works:)

As a matter of principle, when I know that I am going to do a circular repetition, I avoid doing the opposite or V-shaped machining with respect to the axis of rotation (I don't know what case you are in)

I think ac cobra is right, SW is not a fan of crosses especially at zero thickness.

Kind regards

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If your part is not confidential and you are not under SW2020, do not hesitate to attach it , I will look on my side.

I would like SW to say that SW doesn't like instances of material removal crossing each other (or even tangent)

In general, if a function for adding or removing material is limited by planes or surfaces, making a circular repetition is impossible because the solver will also try to limit the functions repeated with the planes/surface of the original function.

Removals/additions of matter limited other than by distance are not "independent" during a nonlinear rotation or repetition (on the same coplanar axis). The solver will not move the plane with the function while the sketch will. Hence your message that the end shot is perpendicular to the sketch. 

For example, to understand this, you can try adding material to a plane in the direction of the Y axis. Do a repeat on the same Y axis, you will see that the repeated addition of material will be equal to the distance indicated in the Repeat options because the plane will not have been repeated. 

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On the other hand, if you cut your piece into 1/4

you will be able to make your piece via symmetries

@+

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Thank you for your answers. Finally I have my grooves one by one. 

Thank you @v.ducos-ducq , very relevant and precise answer.