Using Positional representation in inventor studio error.

[b_ruijter]

I tried to use Pos Reps to make a simple animation in inventor studio in Inventor professional 2019.

The pos reps in the main assembly controlled pos reps in sub-assemblies. Is there a reason that this does not work? I can't seem to get the animation working?

If i manually click, Position1, Position2, Position3, Position4 in the normal modeling environment. Everything looks fine. But when i use these pos reps in an animation, nothing happens? or a bit movement?

Does anybody know what I’m doing wrong?

Hope anybody can help...

[Mark.Lancaster]

@b_ruijter

Here's my advice on this subject matter...

Animating positional reps work the best when the positional rep is solely at the top of the assembly.  When positional reps start driving other positional reps (buried in the main assembly), you may have to make those (buried) positional reps flexible.   In the end positional reps that are buried just may not work at all.   Remember Inventor studio hasn't really changed in many releases.

[b_ruijter]

Realy???

Thanks for the reply, i'll let you know how it will turn out. 

Not quite sure how i do this with the flexible. You mean, the sub-assembly's flexible, and constrain it in the toplevel assembly?

[johnsonshiue]

Hi! If you can share an example, I can help take a look to understand the behavior better. There are indeed some confusing behaviors in flexible and positional representation.

Many thanks!

[kelly.young]

Hello @b_ruijter I see that you are visiting as a new member to the Inventor Forum.
Welcome to the Autodesk Community!

Here are a few good resources going over Flexible Assemblies and how to set the sub-assemblies to flexible:

Help: About Flexible assemblies

Cadline: Inventor: Quick Tip - Flexible Assemblies

If you want to attach you assembly with Pack & Go as .zip for others to inspect that would be helpful!

Please select the Accept as Solution button if a post solves your issue or answers your question.

[b_ruijter]

Hi,

In the original file there is more. But this is the problem in a nutshell. I made for pos reps, Activate them shows the desired motion. As soon as i use Inventor studio (i made a Animation1 wher i animate the pos reps, so you can check) something is moving. But inventor forgets half the motions. 

Is this a bug in inventor? Or am i doing someting wrong?

[Markcanon2000]

Hi , Is there any more information on this, im trying to make an animation with 15 Pos reps and many sub assemblied and the first works correcty ones but then non of the others do.

[johnsonshiue]

Hi! This could be a bug or something isn't set up correctly in the PosRep. It is hard to comment further without seeing the files. Please share the Inventor files (in zip) you are working on here or send it to me (johnson.shiue@autodesk.com) directly. I would like to understand the behavior better.

Many thanks!

[Markcanon2000]

Hi

Please see link to the file.

https://we.tl/t-ksiZLme4qy

At one point i managed to get the panel door animated , tried to do the others , now non of them work.

Kind Regards,
Mark

[Markcanon2000]

Hi I managed to get the panel door working too, did you try any of the other pos reps?Panel doors 

[Markcanon2000]

I also got a grip movementGrip 

[Markcanon2000]

so i know it can do it if ive done my pos reps correctly i think its just a matter of getting the work flow correct.

Any advice on workflow?

[johnsonshiue]

Hi! If possible, please share the download link. The old one has expired.

Many thanks!

[Markcanon2000]

Hi Please see Below.

https://we.tl/t-rSamBgDQDV.

Ive managed to get the panel doors open.

https://we.tl/t-JuTbvFsWAS

And the side grips

https://we.tl/t-K5p01F0JUy

Thank you

Mark