topic Assembly- compressing a part? in Inventor Forum

Assembly- compressing a part?

Anonymous — Mon, 17 Dec 2018 20:52:10 GMT

So I have an assembly where I have 5 rubber pucks that stack onto each other and are an inch thick. During our assembly operation a pad goes on top of them and they get compressed to say 3" tall instead of 5" normally. Is there a way to show this in an inventor assembly so that my drawing remains correct?

Re: Assembly- compressing a part?

blair — Mon, 17 Dec 2018 21:02:08 GMT

You probably what both relaxed and compressed.

Probably the easiest would be to model one compressed and then derive it to the relaxed part and use the Direct Edit tool to stretch out the part.

Then assemble the model with the compressed part(s).

When the parts compress, they most likely will expand radially as their volume must still be the same unless they have air-pockets such as in neoprene.

I would just model the two parts, one is a relaxed height and the other in the compressed height but with a wider body to match the volume of the relaxed item.

Re: Assembly- compressing a part?

Cadmanto — Mon, 17 Dec 2018 21:28:42 GMT

What I would do is like Blair said, create 2 parts. Except I would create them in one ipart. This way once you insert it into your assembly (which should becone an iassembly) you can switch between them rather easily. Then in your drawing, it will only represent the expanded version.

Hope this makes sense.

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