Assembely Paramenters Between Parts

[ASchlaack]

I have an assembely with two rails that are different parts but I need them to always be the same length. How can I link them within an assembly to change with eachother?

[-niels-]

I haven't tested, but believe this should work:
Open one of the rails and add a custom parameter for the length, make sure the part uses this parameter.
Now open up your other part and derive the first one into it.
Make sure you only derive the parameters and none of the geometry.
Then link that part's length to the imported custom parameter.

Hope this helps.

[ASchlaack]

What do you mean by "Now open up your other part and derive the first one into it." One both parts I added a User Parameter that drive the entire length. How do I like those varibles?

[-niels-]

I hope these images help:

My first part "derive_parameter" has a custom parameter "Length"

I derive that part into the part i want to link that parameter with "Target_parameter"

After that you can use the derived parameter like so:

[wimann]

niel's approach looks like it would work. I guess what I would have suggested is to set up an iLogic function like so:

Create user parameter in assembly "RailLength = #"

Create new rule:

<

Parameter("Rail1:1","Length") = RailLength

Parameter("Rail2:1","Length") = RailLength

iLogicVb.UpdateWhenDone = True

>

Then set up a trigger to run your rule or run it manually yourself after changing RailLength in your .iam.

-Will

[ASchlaack]

Thank you! One last issue comes though, now it has copied the rail I was attempting to derive into the .ipt. Can't I do this without that happening?

[-niels-]

Yes, that's why there's an arrow in my image pointing to the solid body.
You have to make sure that it's "off".
If it doesn't let you change the "+" by clicking on it, then you might have to turn off the associative checkbox next to the design view.

[admaiora · Accepted solution]

There are many ways to do that (excel, ilogic, derive, link parameters, etc)

This one is quite similar, but it doesn't use the Derive command and doesn't leave any trace in the Browser about the derive link:

Here a video sample that i have uploaded: