How to build a flap using hinge coordinate system?

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Di Wu

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May 1, 2026, 7:14:43 AM (14 days ago) May 1

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Hello VSP team,

I am recently trying to build a detail 3D aeroplane model wiht the flap. However I found it is very difficult to build the flap (no matter the simple flap or fowler flap) to match the main wing in the hinge coordinate system, but it is much easier to build it in global coordinate system.

Erik D. Olson once gave the best practice of the flap building but it seems there was no hinge component yet.

So, I am just wondering ... is there a way to define the flap's rotation in hinge, but build the flap itself in global coordinate system?

Or is there any suggestions to build the flap in hinge coordinate system to match the main wing conveniently?

best regards,

Woody

LABORO

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May 1, 2026, 7:15:44 AM (14 days ago) May 1

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