Subassembly is not updating

Lavon

How do I get a subassembly to update in another assembly? I'm somewhat new to Onshape so I'm thinking I must just be missing something? Here is the link to the document: https://cad.onshape.com/documents/0972c60bd97f846dd45ef552/w/0b8a3bba54a2f379908deb3e/e/eae8273619aef6653973b63c

I want the assembly "Mezzanine Main Structure" to update in the assembly "Mezzanine." I know I could do it by right clicking on the assembly and going "Replace components" but I'm hoping I don't actually have to do that all the time? Any help would be appreciated!

brucebartlett

It should update automatically as you have not linked it to a version or other document. I would say your problem comes from group mates across multiple levels, the upper-level groupmate is overriding the lower-level group mate and not allowing positional changes to come through. Try suppressing the groupmate on "Mezzanine" and see if it rebuilds correctly.  

john_mcclary

Bruce in right, unfortunately the way group mate works is not immediately obvious.

It acts more like a snap shot of the part coordinates then doesn't update the coordinates when positions change in deeper sub assemblies, because assemblies can't talk to each other.

So by adding group to sub assemblies you basically lock everything up. Suppress then Unsuppress to allow the positions to update in the higher assemblies. Then remember from now on to never allow a group mate to touch any part that belongs to a sub assembly

brucebartlett

It should update automatically as you have not linked it to a version or other document. I would say your problem comes from group mates across multiple levels, the upper-level groupmate is overriding the lower-level group mate and not allowing positional changes to come through. Try suppressing the groupmate on "Mezzanine" and see if it rebuilds correctly.  

john_mcclary

Bruce in right, unfortunately the way group mate works is not immediately obvious.

It acts more like a snap shot of the part coordinates then doesn't update the coordinates when positions change in deeper sub assemblies, because assemblies can't talk to each other.

So by adding group to sub assemblies you basically lock everything up. Suppress then Unsuppress to allow the positions to update in the higher assemblies. Then remember from now on to never allow a group mate to touch any part that belongs to a sub assembly

Lavon

Ok, that makes sense. I suppressed the group mate and it updated perfectly. Thanks so much!