Redefine sketch plane bug

[development]

I'm trying to redefine Sketch Plane by editing Construction Plane.
Why my sketch and new part of body is not on the construction layer? What I'm doing wrong?

Fusion 360 v.2.0.3033

[Mike.Grau]

Hi @development,

Thank you for sharing the Screencast.

There is no issue with Fusion 360 in the Screencast I could see.

I have noticed that you haven´t constrained your sketch at all.

Therefore the sketch does not no where to go in X and Y. 

With Edit Reference Plane you just define the Z coordinate of the Sketch.

Please, use the project tool in the sketch bar to project the origin point to your sketch and constrain your rectangle to the origin point.

I hope this helps.

Thanks,

[davebYYPCU]

It sounds like you want something to happen, that isn't being asked for,

as Mike says, nothing wrong with the moves in your screencast, every thing has worked correctly.

So if you want the second extrude to sit on the top step, or bottom step, Redfine Sketch Plane, is not the right command.  

You are only moving the "alignment" of the sketch, think about moving the sketch, with the move command, if that is what you are trying to do.

[development]

Thanks for Your replay.
I was based on this video https://www.youtube.com/watch?v=v6DzhcG3LNs
In my project, I expected that when i move Construction Plane from one to another, the Sketch centre will go to the centre of new Construction Plane. All works fine if the second plane is NOT parallel to the first. If is parallel, then centre of sketch stay on first plane.
Is it normal? Can I manualy set the centre of sketch on plane?

[davebYYPCU]

I had not seen that video before, as you say works some of the time.

I would say that video shows you the exceptions to the rule, using a circle is misleading.

I have tried the workflow for redefining the plane, and at times the sketch can be reveresed, front is now behind, or went 90 deg, or at least orientated in a way I didn't want, so I try to avoid it. 

 What you did is absolutely normal, and in your second video, it demonstrates the bottom of the extude lifted to the top step. 

Normal, you are not asking to move the sketch, just it's alignment, and because the sketch is populated with geometry, that geometry goes for a ride.

Half of Bens workaround is about what you can get to work when not parallel to the original, the point you make,

but the first half with the "symetrical" sketch attached to World Origin, I reckon would be the only time it is reliable.

Would you make a workplane on a face, that is not my normal workflow either, can do it and there would be good reasons to do so,

but with sometimes unexpected results as you see. (green line example)

Can I manualy set the centre of sketch on plane? No. 

A Workplane has no dimensions, or geometry, so how can you find the centre of nothing?

except that, only after you select it, or "create sketch" on it, Fusion will project the World Origin to it, so you can snap the sketch to it.(World Origin's reference point)

Always many ways to do the same thing....  Have you seen the video 9 ways to make a cube?

[development]

Thanks for explain. Starting with method that is de facto exceptions to the rule wasn't easy for the begin.
Do you mean some concrete video? There are many similar with the same topic.

[Mike.Grau]

Hi @development,

Thanks for the update.

There is no particular video I have in my mind but the "Sketching" Playlist in our youtube channel

has some great content.

https://www.youtube.com/playlist?list=PLmA_xUT-8UlLx4mcCK62PNW2fz4K4_Rxy

I hope this helps.

Thanks,

[TrippyLighting]

The problem as shown in the video is that Fusion 360 makes assumptions on behalf of the user when sketch plane is parallel to the old sketch plane.

Sometimes that behavior might be desirable, sometimes it's not. It would be nice to be presented with an option in the dialogue!