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Scaling profiles/splines

Scaling profiles/splines

Scaling profiles/splines

(OP)
Hi everyone,

I am cading a wing that might need to be changed. Also I need to do multiple ribs so importing the profile everytime is going to be a lot of work.
What I am doing now is importing a spline and then project it on a sketch and isolate so I can turn it. But I can't find a way to have a parametable operation which I could use to do multiple sketches faster or change the chord later. I can't even understand how the scale function is working in the sketcher... I drag the second point and nothing logic is really happening... I Was thinking about selecting a point with a distance that I control with a parameter, but it seems there is no way of predicting the lenght or ratio used with this function.

Thank you for your help.

RE: Scaling profiles/splines

(OP)
Thank for the vidéo, but that's not really what I need. I would like to have a parameter that controls the chord line lenght of the rib so I can change easily the dimensions of the wing. This video shows how to have a variable projection but I do not control the chord.

RE: Scaling profiles/splines

(OP)
It worked! Here are the steps for future references.

I imported the points with the excel file "GSD_PointSplineLoftFromExcel.xls" in C:\Program Files\Dassault Systemes\B23\win_b64\code\command.
Isolated the points.
In the Wireframe and surface design, I scalled a 1 cm profile.
The ratio I used is a parameter that has the wanted lenght for value.
Trace the spline with the points.
Done!

Thank you for your help ferdo

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