Skip to main content
16-Pearl
December 18, 2018
Solved

Assembly Cut and the Damage Done

  • December 18, 2018
  • 4 replies
  • 14623 views

Hi all!

 

Please see attached.

 

Read notes in PDF.

 

Anyone ever deal with this?

 

This is not isolated to just this case. It can be duplicated from scratch.

 

Thanks,

 

Wayne

Best answer by MartinHanak

Hi,

I attached video showing appropriate steps ...

Attention!!! Part mass properties are fixed for ever, any geometry modification does not cause a change in weight.

 

4 replies

23-Emerald IV
December 18, 2018

Don't add any columns to your family table that will change based on the effects of the assembly level cut (like calculated mass.)

wfalco16-PearlAuthor
16-Pearl
December 19, 2018

This is in fact a solution. However, our standards call for the use of these at the moment. Thanks.

One thought I had was to somehow make the one part weight = to the others via a relation. I am not sure how to write that?

23-Emerald IV
December 18, 2018

Realize that assembly cuts create "hidden" family tables out of the affected components which means for the purposes of the repeat region these are unique models with different masses.

wfalco16-PearlAuthor
16-Pearl
December 19, 2018

Yeah. I was actually helping someone out with this. I have never had this situation. This is news to me. Thanks.

15-Moonstone
December 18, 2018

Overall, if you mean for that cut to exist in the actual part rather than only in the context of the assembly, then I would avoid using an assembly cut. Assembly cuts only affect the particular component placement that it directly cuts. You can use the options in the cut to have it affect that actual part and then in your example they both would have the hole but in general that's where I'd try to avoid the assembly cut to begin with.

wfalco16-PearlAuthor
16-Pearl
December 19, 2018

I am helping someone out with this. For whatever reason, they have the need to machine in the finished assembly. I do agree assembly features in general come with issues. Thanks.

24-Ruby III
December 19, 2018

@wfalco wrote:

Hi all!

 

Please see attached.

 

Read notes in PDF.

 

Anyone ever deal with this?

 

This is not isolated to just this case. It can be duplicated from scratch.

 

Thanks,

 

Wayne


Hi,

in part properties you can change the method how its weight (and other properties) is obtained. By default weight is calculated by Creo (in this case your two components have different weight). You can set part mass properties to fully assigned, this means that you assign fixed value to mass parameter (in this case both components have the same weight and in repeat region they "fall" into the same row).

wfalco16-PearlAuthor
16-Pearl
December 19, 2018

Sounds interesting. I am not sure how to do this. I can send you my little sample drawing if that helps?

24-Ruby III
December 19, 2018

No problem, send it.