topic Re: Parametric sketch component move in Fusion Support Forum

Parametric sketch component move

MathieuPeyrega — Wed, 13 May 2020 12:56:18 GMT

Hello,
i'm trying to achieve a parametric rotation of a sketch component (a given close polyline profile).
Within the sketch edition, and with a prior existing user parameter (value in deg) defining the rotation, the sketch component move operation let me choose the user parameter as the rotation value and properly apply it once, but this is not updated later on when I change the parameter value.
Did I missed something ? Is there a workaround / alternative workflow for this ?
Regards

Re: Parametric sketch component move

g-andresen — Wed, 13 May 2020 13:33:54 GMT

Hi,

share the design and name the relevant parts and dimensions.

günther

Re: Parametric sketch component move

TheCADWhisperer — Wed, 13 May 2020 14:25:18 GMT

@MathieuPeyrega wrote:
... defining the rotation, the sketch component move operation ...

Can you use Parametric Angle dimension rather than Move operation?

As suggested - File>Export and then Attach your *.f3d file here.

See my Attached file.

Re: Parametric sketch component move

MathieuPeyrega — Wed, 13 May 2020 13:48:08 GMT

I just draw a simplified exemple.
There is the angle user parameter. When applying the move operation (rotation along Z axis, angle "angle", create a copy) for a rectangle drawn initially aligned with XY axis : initial parameter value is applied (was 10° here) but is not reapplied when updating the parameter in a second step (either sketch in edition or not)

https://a360.co/3dFjlkk

Re: Parametric sketch component move

jeff_strater — Wed, 13 May 2020 14:06:59 GMT

I think there is a misunderstanding about the Move command in sketch. There is no "feature" created for the move operation. So, once you use Move to rotate the rectangle, that is just applied once, and forgotten. There is not history there. If you want to control the rotation using a parameter, you will have to create an angle dimension, and make sure that your rectangle is constrained, so that it does not change shape. I'll construct a simple example shortly

Re: Parametric sketch component move

jeff_strater — Wed, 13 May 2020 14:22:39 GMT

here is a screencast. Sample model is attached

Re: Parametric sketch component move

MathieuPeyrega — Wed, 13 May 2020 14:33:23 GMT

Thanks, I indeed followed a bad way in first place.
The technique you described work for a ployline, but now I'm trying to apply the same angle constraint principle when the component I want to rotate is a closed spline and I do not suceed.

e.g. I draw a construction line between 2 of the spline points, then when I apply the angle constraint between this ref line and e.g. X axis, then the spline gets distorted.

Re: Parametric sketch component move

TheCADWhisperer — Wed, 13 May 2020 15:22:34 GMT

File>Export and then Attach your new *.f3d file here.

Constraining a spline will take a bit more effort to fully define so that it does not distort when rotated.

Re: Parametric sketch component move

MathieuPeyrega — Wed, 13 May 2020 15:30:24 GMT

thanks for helping !

design is here : https://a360.co/2T3Onua

and the root idea is basically to be able to change the angle of an airfoil on a design.

Re: Parametric sketch component move

MathieuPeyrega — Thu, 14 May 2020 13:55:14 GMT

I finally managed to do almost what I wanted using circular pattern with type set to "Angle"