Assembly ->>> Limits+ insert constrain

[Anonymous]

Hi!

I am fighting with hydro cylinders.

I have outer part numbered 11

and inner part 12.

I need to complete 2 tasks:

• 1)))To insert 12 into 11

Q: Sometimes  I can see center line and sometimes not, so I don’t understand the strategy for constraining these parts

• 2))))To set limits, so that inner part can’t go out from outer part.

Q: This assembly comes from the tutorial. In the tutorial it works, but I am failing to do that

Here is the link for file

https://www.dropbox.com/s/5rargf8scranffv/test%20zipped.zip?dl=0

Thank you

[Curtis_Waguespack · Accepted solution]

Hi s.shivaprem,

Here's a quick video.

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com

[tdant]

And here's the result, in case you need it: https://www.dropbox.com/s/dpqgyztvszjxgxu/test%20zipped.zip?dl=0

[salariua]

@Anonymous

You should never use insert or axis mate on cylinders but that's my personal experience.

I would mate/flush origin planes (if they are on center) and have 2 Positional Representations. One flexible so you can set this cylinder assembly as flexible and simulate movement from higher up and the other constrained and you control the stroke with iLogic (best option really) and slides in forms.

Insert and flexible don't play nice and axis mate will allow rod spinning which is not what you're after, unless this is a rotating actuator.

[mcgyvr]

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@salariua wrote:

@Anonymous

You should never use insert or axis mate on cylinders but that's my personal experience.

I would mate/flush origin planes (if they are on center) and have 2 Positional Representations. One flexible so you can set this cylinder assembly as flexible and simulate movement from higher up and the other constrained and you control the stroke with iLogic (best option really) and slides in forms.

Insert and flexible don't play nice and axis mate will allow rod spinning which is not what you're after, unless this is a rotating actuator.

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You certainly can just use an insert (with limits) and a mate (or angle) on a plane to prevent rotation.. You only need 2 constraints that way vs needing 3 if only using mates.. That removes the extra degree of freedom that can cause flexible to behave a little weird.. 

[salariua]

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@mcgyvr wrote:

You certainly can just use an insert (with limits) and a mate (or angle) on a plane to prevent rotation.. You only need 2 constraints that way vs needing 3 if only using mates.. That removes the extra degree of freedom that can cause flexible to behave a little weird.. 

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It's just a personal preference on my end. I don't like inserts because I would be referencing an edge which can disappear with chamfer or fillet and then I get constraint errors.

This assembly is actually a big iLogic assembly which changes parts depending on the cylinder type, mounting, etc. so using anything else than origin planes for constraining will break functionality.

[Anonymous]

Thanks for all yours replies!

I will try all your approaches and will let you know how it works.

Thank you!

[Anonymous]

@Curtis_Waguespack, hi!

I want  to thank you for your approach, but for some reason my silver part is frozen and 
I can't figure out the source of this problem

Thank you

the file is here https://www.dropbox.com/s/rteqi8y0lp6licn/Assembly%20H2%20-%20frozen%20%20zipped.zip?dl=0

[Anonymous]

@salariua, hi!

Thank you for your help, but I understand nothing.

;))

I don't understand the text.

and the actions on video are to quick, so I can't follow them.

Here is the link for the original files:

https://www.dropbox.com/s/kbmu4mus8dzfkls/assembly%20H2%20%20original.zip?dl=0

It would be great if you could create screen cast on my assembly,

since  I don't understand what is happening in assembly you used as an example.

Thank you in advance!

[johnsonshiue]

Hi! This should a pretty simple task using Insert constraint. Just pick one circular edge from each part and set the Max and Min limits. Have you gone through Inventor tutorials, particularly the assembly portion?

Many thanks!

[JDMather]

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@Anonymous wrote:

Here is the link for the original files:

https://www.dropbox.com/s/kbmu4mus8dzfkls/assembly%20H2%20%20original.zip?dl=0

It would be great if you could create screen cast on my assembly,

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You are more likely to get Autodesk Screencast solution if you attach your assembly directly here rather than to 3rd party dropbox.

[Anonymous]

@johnsonshiue, hi!

I use this tutorial https://www.youtube.com/watch?v=ezjtu2UxrFA

[Anonymous]

here is the file for the frozen assembly

[Anonymous]

and here is the file for the original assembly

[JDMather]

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@Anonymous wrote:

here is the file for the frozen assembly

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These files are not needed.

I do not see any Limits set on your Insert constraint?

[JDMather · Accepted solution]

Note the file size of my attached zipped folder of your parts and assembly.

I skipped over this in the video - but note that you need to expand the dialog box to get access to the Limits.

This is covered in any typical book for learning Autodesk Inventor.

[Anonymous]

@JDMather!

I like your explanations!

Simple and very useful!

Thanks!

[Anonymous]

@salariua!

I also want to learn your approach with mate.

It would be great if you could create screen cast explaining your way by using my cylinders.

Thank you in advance!

[JDMather]

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@Anonymous wrote:

@JDMather!

I like your explanations!

Simple and very useful!

Thanks!

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Curtis demonstrated the same thing 3 days earlier in this thread.

It is important to experiment without being given each explicit step and observe the results you get through trial-and-error.