Position changing and adaptive 3D sketch in assembly?

[jumatuun]

Hi,

How to make this correctly?

I have an assembly with two parts. Other one is staying in place and other has multiple positions. They are changed via Position function. I want to make a new part and in that part draw a 3D sketch between those two parts. If I use copy object as surfaces I notice the copied surfaces aren't moving with the moving part when I change the position as they should.

Is this problem solvable?

The goal is to make the 3D sketch as cable, which has other end moving with the other part. I can't use Cable and Harness because there  I can't lock the length of the cable.

-Juha

[blandb]

When you copied the surfaces did you make sure to keep the associative box checked? You should see the adaptivity symbol next to the surface that was imorted.

[johnsonshiue]

Hi! Inventor Positional Representation does not support adaptivity (i.e. all geometry has to be rigid between PosReps), while Model States only support adaptivity in Primary (or one of the Model States).

In your case, you will need two set of files. Please share the files you are working on. I can take a look and propose a suitable workflow.

Many thanks!

[jumatuun]

Hi,

Thank you.

Here are my files. 

-Juha

[blandb]

Can you do it with model states? Make model states in the part that have an offset workplane moving, then have the same model states in the assembly. Now in the drawing you can use overlay to show the model states.

Please see attached video for assistance

[johnsonshiue · Accepted solution]

Hi Brad,

I don't believe Model States can help this case. It is because Model States only supports the adaptivity in one Model State (not all). As a result, when you document the Model States, the adaptive part will only be one state (adaptive or not adaptive). The part cannot be adaptive in two Model States.

The limitation here is a part with multiple Model States cannot be made as adaptive. And an existing adaptive part can only be adaptive with one assembly Model State in the hosting assembly. This is why Model States are not fully supporting specialized component workflows like Bolted Conn, Cable&Harness, Design Accelerator, Frame Generator, and Tube&Pipe.

Hi Juha,

Many thanks for sharing the files! I think what I mentioned above is still true. For this particular case, you will need to have two set of files to represent the part in two states due to the adaptivity.

Thanks again!

[blandb]

I was using this to try and by-pass the adaptivity...

[jumatuun]

Hi Johnson,

Thanks. What do you mean by two sets of files? Do you mean I should do it with model states? Different model states for all positions? Isn't there going to be many file sets then?

It sounds like a difficult thing if there are many cables and positions.

-Juha

[johnsonshiue]

Hi! In this case, you need two sets of iam and ipt files. For example, you have ASMB1 -> Part1 and AdaptivePart2 representing one state. You will need ASMB1_1 -> Part1_1 and AdaptivePart2_1 representing the other state.

Many thanks!

[jumatuun]

Hi. Still I didn't get it how to do that. But that is not a problem because I don't want two set of files anyway. I have a lot more complex assembly with this problem. I just won't draw the cables. I guess one is not just capable to do it with Inventor.

Thanks!

-Juha

[johnsonshiue]

Hi! You will need to use Design Assistant or iLogic Design Copy to spawn (copy design) a new set.

Many thanks!