Inventor General

Inventor General

Valued Contributor
Posts: 88
Registered: ‎08-28-2009
Message 1 of 9 (191 Views)

Is it possible to know if part fits by moving it?

191 Views, 8 Replies
10-29-2011 01:10 PM

I need to find out how much smaller the part in the upper image is so it fits inside the similar shape in the bottom image. The real part is a bit more complicated so it's hard to calculate if it fits. Is it possible to make those parts in assembly mode so that they don't move through each other and I could move the upper part inside the lower and find out that way if it fits?

http://i.imgur.com/jR1xv.jpg

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Message 2 of 9 (188 Views)

Re: Is it possible to know if part fits by moving it?

10-29-2011 02:56 PM in reply to: es12

Yes.

Of course if you use multi-body or derived component or top-down modeling techniques you know exactly how the parts fit together from the time of creation.

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Message 3 of 9 (169 Views)

Re: Is it possible to know if part fits by moving it?

10-29-2011 10:06 PM in reply to: JDMather

I haven't done the parts yet. I would like to learn the way to "virtually" test which size part fits and then when I know the size I will start drawing them.

Valued Mentor
Posts: 722
Registered: ‎11-10-2009
Message 4 of 9 (144 Views)

Re: Is it possible to know if part fits by moving it?

10-30-2011 03:00 PM in reply to: es12

es12 wrote:

I haven't done the parts yet. I would like to learn the way to "virtually" test which size part fits and then when I know the size I will start drawing them.

This sounds like the mindset of someone who is used to using AutoCAD or 2D. Don't worry, we were all stuck there at one point I think. There are several ways that I can think of to accomplish what you want and they all start with training in the software. You can use one simple sketch and then create a multi-body part file from there, then write those out to an assembly file.

The beauty of this workflow (and IV in general) is that you haven't wasted any time (and excess geometry) like your post is implying you are going to do. You don't need to figure it out first, then model it because the program is parametric. You can figure it out while you are modelling it.

Good luck!

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Valued Contributor
Posts: 88
Registered: ‎08-28-2009
Message 5 of 9 (142 Views)

Re: Is it possible to know if part fits by moving it?

10-30-2011 03:14 PM in reply to: es12

Yes I switched from AutoCAD. I've done assemblies with my other parts in Inventor already, but I haven't figured out how to make the parts so they don't go through each other when moved.

Valued Mentor
Posts: 722
Registered: ‎11-10-2009
Message 6 of 9 (140 Views)

Re: Is it possible to know if part fits by moving it?

10-30-2011 03:47 PM in reply to: es12

For that you need to constrain them together only enough to restrict their movement (i.e. so they slide freely in the direction you want them to) and use the contact solver. Right click the parts in the browser (in your assembly) and select the "contact set" option. Then turn on the contact solver from the ribbon (I think it's on an "inspect" tab or something).

Hope that helps.

Inventor Professional 2013 (SP-2.3), Product Design Suite Ultimate
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Posts: 88
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Message 7 of 9 (90 Views)

Re: Is it possible to know if part fits by moving it?

10-31-2011 01:11 PM in reply to: jeanchile

That worked almost perfectly (it's a bit hard to move the part though). Only problems is that when I try to move it out from the hole the part jumps out and doesn't slide like it would normally. It also jumps through the part some times when moving the part in.

Valued Mentor
Posts: 722
Registered: ‎11-10-2009
Message 8 of 9 (78 Views)

Re: Is it possible to know if part fits by moving it?

10-31-2011 01:45 PM in reply to: es12

I think the contact solver is only intended to be used as a temporary thing for demonstrations and things and it is VERY CPU heavy so you should turn it off when you aren't using it. If you want more control I would suggest looking into using constraints and animating them (it's not difficult) or using IV studio. There are ways to link dimensions to your constraints so that they only move a certain amount to simulate the actual movement without using the contact solver.

Good luck.

Inventor Professional 2013 (SP-2.3), Product Design Suite Ultimate
Desktop: Intel Core i7 3.4GHz, 16.0 GB RAM, Windows 7 Ultimate SP-1, 64-bit OS, (2) GeForce GTX 580 (331.81), Space Pilot Pro (3.16.1)
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Posts: 88
Registered: ‎08-28-2009
Message 9 of 9 (73 Views)

Re: Is it possible to know if part fits by moving it?

10-31-2011 01:52 PM in reply to: jeanchile

Ok. Thanks for the help. I will try those tricks tomorrow.

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