Circular pattern - rotatate elements until contact (like roller blinds)

[j.pavlicek]

Hello,

I have a circular pattern in assembly which contain part(s) which can be rotated (around axis parallel with the pattern axis). You can imagine it as roller blind but around circle.

I need to find the closed position. But cannot imagine how. One edge shape is line (bottom) and other is spline (up). Here is detail. Dimension 3,504 is estimated (and wrong)

Thank you for suggestions!

[Thomas_Savage]

Hello @j.pavlicek

I have attached a screenshot.

Try the Component Priority, which i have circled in my screen shot.

Or Part Priority.

Instead of Select Faces and Edges.

Thomas.

[j.pavlicek]

Thank you, but it is not what I want.

I need to rotate elements in a pattert to position that distance between them will be 0 (ZERO)

I cannot link elements with a tangent constraint, Because I can move only with "Element 1" (others copy rotation from it - it's required behavior).

[johnsonshiue]

Hi! You might want to use Contact Solve. Select all these parts and right-click -> check Contact Set. Then go to Inspect tab in the ribbon -> click on Activate Contact Solver.

Please note that Contact Solve is a compute-intensive operation. Once you are done with the analysis, make sure you turn it off.

Many thanks!

[j.pavlicek]

It's not working for me.

Contact set

[JDMather]

This is all wrong.

You need to solve for Contact between only two components.  (Keep it simple.)

It is best to Drive Constraint an angle rather than drag with mouse.

Or even better - Environments>Dynamic Simulation 2D Contact Joint.

Attach your assembly here if you can't figure it out.

[j.pavlicek]

"You might want to use Contact Solve. Select all these parts and right-click..."

But I get same behavior when a contact set is set only for first two elements

 

Attached zip contains a dummy assembly -  I cannot share original parts.

[JDMather]

Did you test your *.zip?

[j.pavlicek]

Yes, and get this result

Contact set:

Used files extracted from ZIP to different path than original project.

[JDMather]

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@j.pavlicek wrote:

Yes, and get this result

Used files extracted from ZIP to different path than original project.

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Hmmm.

When I download the zip file I get an error message and the zip file size seems a bit small, but that does not necessarily mean anything.

Any one else able to test the attached zip file?

Did you use Windows to zip this folder?

[j.pavlicek]

I used 7zip. I use it for packing zip for Windows Explorer users for years without any problem. Interesting.

Attached ZIP is made by Windows Explorer.

[Anonymous]

I would imagine that checking 2 parts will give you exactly the same result as checking the entire assembly, since it is a regular pattern. So why not restrict the pattern to 2 occurrences for checking interference ?  You can "parameter up" to a full circle afterwards.

[JDMather · Accepted solution]

You can set the number of steps to a higer resolution or st as angle increment value.

Contact Set is not needed.

I have set up limits of travel in the attached.

Change the -10 to say, -90 if desired greater opening.

You can drag by mouse or change Resting Position as desired.

[j.pavlicek]

Thank you. This is unexpected approach for me, but works great!

[j.pavlicek · Accepted solution]

Interference issues (bolted connection):

If you want to use this method, but you there are some bolted connection. It fails in first step (this bolted connection are evaluated as interference and Driving is stopped).

Select all and suppress. Then write name of the main parts in the pattern into search field. Select them (hold CTRL) and disable suppress on them. Suppressed parts are not involved in the interference calculation.

I also suggest this approach, when you use this method in assembly with other parts - suppressing of other parts would speed up the process.