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

Esteemed Contributor
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
ST9 MP10 - 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

Esteemed Contributor
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
ST9 MP10 - 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

Esteemed Contributor
Esteemed Contributor

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

Bruce Shand
ST9 MP10 - Insight - Win10 - K4200

Re: Alignment in assembly

Esteemed Contributor
Esteemed Contributor

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

Bruce Shand
ST9 MP10 - Insight - Win10 - K4200