topic Re: Animate Positional Representations problem - please help in Inventor Forum

Animate Positional Representations problem - please help

Anonymous — Sat, 25 Apr 2020 19:07:06 GMT

I have a simple assembly with master and two other positions. Switching between position in Assembly mode works fine, but when I go into inventor studio and try to create Pos Reps animation, it will not do anything. There is also no error messages.

I have Inventor 2020 and Excel 2016 64-bit.

Thanks in advance

Re: Animate Positional Representations problem - please help

luisalfredovazquez1995 — Sat, 25 Apr 2020 19:41:07 GMT

Hi! @Anonymous

Positional representations are not for making animation in Inventor.

If you want to animate a constrain you need apply a motion or transitional constrain.

Re: Animate Positional Representations problem - please help

jhackney1972 — Sat, 25 Apr 2020 20:20:10 GMT

Positional Representations can be used to animate an Inventor Assembly using the Inventor Studio. Inventor Studio is normally used for creating outside presentations for others in the company or customers. I will agree with @luisalfredovazquez1995 that for general design animations where you are checking for operation, clearances, interference and other engineering concerns, driving Assembly Constraints is probably a better tool. Take a look at my Screencast where I demonstrate a simple Inventor Studio Position Representation animation.

Re: Animate Positional Representations problem - please help

JDMather — Sun, 26 Apr 2020 13:23:16 GMT

@Anonymous

Attach your assembly here if you have trouble figuring it out.

Re: Animate Positional Representations problem - please help

lena.talkhina — Wed, 20 May 2020 09:19:38 GMT

Hello @Anonymous !

Great to see you here on Inventor Forum.

It's been a long time since we last heard from you. Do you mind to share your files here as @JDMather requested?

Thanks!

Re: Animate Positional Representations problem - please help

niels.bugge — Sun, 19 Sep 2021 23:20:20 GMT

Hi @jhackney1972

I have the same issue; i follow all the steps, but when I play through my animation, nothing happens. I'm simply trying to get the Lid to move from Closed to Open and back down to Closed. Thanks in advance.

Re: Animate Positional Representations problem - please help

jhackney1972 — Sun, 19 Sep 2021 23:29:54 GMT

Your attached model is not any good. You must use Pack and Go routine in Inventor to export any assembly. The assembly file without the parts cannot be open correctly.

Edit: You can get to the Pack and Go routine easily by right clicking on your assembly in the Open dialog box.

Re: Animate Positional Representations problem - please help

niels.bugge — Mon, 20 Sep 2021 00:00:06 GMT

@jhackney1972

My bad. I have attached the file using pack and go now. Hope this works better

Re: Animate Positional Representations problem - please help

jhackney1972 — Mon, 20 Sep 2021 01:04:08 GMT

Well this is a real head scratcher. I have never liked using Joints in Inventor as I always had issues with animating them. I changed your model over to Assembly Constraints but it did not help. I will continue to look at it but I hope someone else can solve it sooner. Sorry I could not be more help at this time.

Re: Animate Positional Representations problem - please help

WHolzwarth — Mon, 20 Sep 2021 11:44:32 GMT

Here's a somewhat different approach:

- Lid opens

- Handle on Inner Bin rotates up
- Inner Bin moves up

- Inner Bin moves forward

So far it works. But I didn't find a solution for a pouring out rotation. Inner bin should rotate about 120° down, and handle should do the same by about 60°.

Re: Animate Positional Representations problem - please help

JDMather — Mon, 20 Sep 2021 13:07:24 GMT

@niels.bugge wrote:

I'm simply trying to get the Lid to move from Closed to Open and back down to Closed.

If @WHolzwarth example inspires you to go further with this - you could go into Environments>Dynamic Simulation, add Gravity and 3D Contacts and have a bit of "rubbish" (maybe represented by spheres, cubes, cylinders) pour out of your internal bin. Then Publish to Studio.

Re: Animate Positional Representations problem - please help

niels.bugge — Fri, 05 Nov 2021 22:29:20 GMT

In the end I removed the joint and used insert and angle constraints instead, which worked fine. The reason for trying to use joints in the first place was that in my program, it was presented as the more dynamic and versatile alternative of the two....