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M
mparmenteri12-Amethyst
12-Amethyst
July 8, 2024
Question

Interchange Assembly and Simplified Reps

  • July 8, 2024
  • 2 replies
  • 2353 views

Hello,

 

I'm working in Creo Parametric 9.0.7.0.

 

I have a model of a box with a door on it. I have two versions of the hinge for the door, one open and one closed (the only difference is an angle constraint that switches between 0 degrees and 180 degrees). I created an interchange assembly that maps all the pertinent geometry on one hinge to the other.

 

I can replace these hinges and update my model and the door will open/close fine. I would like to have a simplified rep to be able to swap between open/closed configurations, but Creo doesn't seem to allow that unless I use a simplify interchange assembly rather than a functional interchange assembly.

 

My problem is that the simplify assembly only does a cosmetic update rather than a functional update (it doesn't update the constraints).

 

Is there any way to set up a simplified rep to switch between parts of an interchange assembly and have the constraints update in a top level assembly?

 

Thanks,

Matt

2 replies

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
July 8, 2024

Why are you not using a mechanism snapshot to position the door open/closed?

 

In Creo, Snapshots are used to configure the kinematics of a mechanism in mechanism mode. They allow you to assemble individual components (let’s say component A and component B) and display them in various positions without having to create multiple versions of the same components 

 

About Dragging and Taking Snapshots (ptc.com)

M
mparmenteri12-AmethystAuthor
12-Amethyst
July 8, 2024

I hadn't thought of using snapshots but I'm not currently in mechanism mode, this is just a normal assembly where all the parts are fully constrained.

 

I will eventually have a wire harness moving across this hinge to some LEDs on the door, and it would be helpful to have all of this parametrically update rather than just be cosmetic.

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
July 8, 2024

You can use snapshots in assembly mode. The snapshots are parametric in your case you will have one snapshot with the hinge set to 0 deg and one with the hinge set to 90 deg. All assembly components are common in this scenario.

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
July 8, 2024

If you want to use simplified reps with snapshots in assembly mode, then you can use this method:

 

Create a Combination State that calls the Simplified Rep and also the desired Snapshot as an Explode State.

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