adaptive sweep frame

[Anonymous]

I have a simple design...

A frame PROFILE that I have swept around a sketch PATH. I have created the profile on a plane perpendicular to the sketch path (plane created from the path). I have made the sketch path adaptive. I then swept the profile along the path. I inserted the part into an assembly where I have a wall that I want the frame to seat inside of it with a variable gap between the wall and frame.... as the wall grows so does the frame... but its not fully constrained to the wall... only two sides constrain, when tried to constrain the third wall it causes an error. 

Inventor 2013

please help

Brian

[johnsonshiue]

Hi Brian,

Something is not working right. Could you share the example here? I would like to understand the behavior better.

Many thanks!

[Anonymous]

John

Here is the inventor files, two part files and one assembly using both
parts.

Inventor 2013



Basically, I am trying to have the profile frame adapt to the inside wall
dimensions. I used the sweep feature to create the extrusion (frame) from my
profile, the profile was created on a plane produced from my sketched path.

[johnsonshiue]

Hi Brian,

The forum is acting up on attachment. You may need to zip up the file before you can attach it to a thread.

Many thanks!

[Anonymous]

John -

I have attached a zip file containing three inventor files...

Let me know...

Thanks,

Brian

[johnsonshiue]

Hi! I guess there is a little bit misunderstanding of how Adaptive works. There are three ways to adapt: cross-part project, adaptive sketch, and adaptive feature. In your case, you are using adaptive sketch, since Sweep feature itself cannot be adaptive (not enabled yet). When a sketch is adaptive, it is better to leave as much degree of freedom within the sketch as possible. Otherwise, you would have two drivers (2D sketch solver and assembly constraint solver) fighting each other. Also, the adaptive part itself is not properly constrained. I added a flush constraint and changed the constrain geometry to adaptive sketch.

Please take a look at the attached file. I have made the necessary change to the part so that the sweep path is adaptive.

Many thanks!

[Anonymous]

Thanks for your help and time... works great!

I don't understand what is different from your modified files to my files. I did apply adaptive to my path-sketch and the profile-sketch I left non-adaptive. I created a perpendicular work plane based on the path-sketch; I created a profile-sketch on that plane... I used the sweep feature to create the part. What am I missing... ?

Sorry, I'm not seeing the difference...?

[johnsonshiue]

Hi! There are actually quite a few places different.

1) Open the adaptive part and edit the adaptive sketch. Show all constraints. You will see the original sketch has quite a few unneeded constraints.

2) The two Mate constraints in the original assembly select the frame faces. This will not work because Sweep itself cannot be adaptive (though it looks like it could). You need to select the adaptive sketch as constraint participants.

3) The adaptive part essentially floats in the space. There needs to be a Flush constraint to reduce the degree of freedom at the assembly level.

If you made similar changes, you will see the adaptive works the way you want it.

Many thanks!

[Anonymous]

I see... the path-sketch is adaptive, not the profile-sketch, so constraining each edge of the path-sketch to each side of the wall is how you can make the part adaptive. I was pretty close, thanks for clarifying it. So, the path-sketch only needs parallel constraint, and/or bare minimum constraints.  I am using this simple example for a much more complicated part.

Thanks again John,

Brian