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Alignment in assembly

Valued Contributor
Valued Contributor

According to the built-in help, when you select Planar Align, you pick the part that needs to be aligned first and then select the face to which it should align.

 

When I try this in assembly, the second part moves to align with the first.  In this assembly, I want to align the bottom header with the top, but the top header moves to align with the bottom.

 

p1.png

 

p2.png

 

p3.png

7 REPLIES

Re: Alignment in assembly

Valued Contributor
Valued Contributor

I tried the oppsite order and still the wrong part moves.

Re: Alignment in assembly

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

Is the bottom one grounded or otherwise constrained in that axis? Unlikely you'd overlook that but I had to ask. You could ground the upper prior to your operation.

Bruce Shand
ST10 MP7 - Insight - Win10 - K4200

Re: Alignment in assembly

Valued Contributor
Valued Contributor

The bottom one is not constrained in that axis.  When I placed the top one, I tried to establish a tangency relationship between the header body and the long vertical plane, but it wasn't a critical measurement so I just eyeballed it.  Is it possible to do this (set a cylinder tangent to a plane)?

Re: Alignment in assembly

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

Yes, of course it's possible. And if it was really constrained in that direction then it shouldn't have moved. I set up a little assembly for test and it works as expected so I don't really know what you had going on.

Bruce Shand
ST10 MP7 - Insight - Win10 - K4200

Re: Alignment in assembly

Valued Contributor
Valued Contributor

The top wasn't constrained.  Can you please tell me how I can establish a tangency relation between the pipe and the vertial plane?  I tried the tangency opion in Assemble tab and also the Face Relate, but neither lets me pick the plane.

Re: Alignment in assembly

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

My first suspicion is your options settings in the assemble tooltangency.JPG

Bruce Shand
ST10 MP7 - Insight - Win10 - K4200

Re: Alignment in assembly

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

Apparently that's not it. I can't get tangency to a plane to not work by changing those settings.

Bruce Shand
ST10 MP7 - Insight - Win10 - K4200