Arrangement vs reference set
Arrangement vs reference set
(OP)
I have a main assembly with 3 subs:
Sub A is the base machine frame
Sub B is an interchangable tool set
Sub C is another interchangeable tool set
Sub B & C will never be on the machine at the same time (they occupy the same space).
Currently I have the main assembly set with two Arrangements:
Arrangement 1 has Sub C suppressed (the other two un-suppressed)
Arrangement 2 has Sub B suppressed (the other two un-suppressed)
Others in the office seem to think this should be done with reference sets (I am not very familiar with reference sets and the others are not very familiar with using arrangements in this fashon).
So, I wanted to pose the question here. Which method (arragements or reference sets) is appropriate for this task and why? Or are there other methods that would be even better.
FYI, We are running NX7.5/TC 8.0
Thanks!
Sub A is the base machine frame
Sub B is an interchangable tool set
Sub C is another interchangeable tool set
Sub B & C will never be on the machine at the same time (they occupy the same space).
Currently I have the main assembly set with two Arrangements:
Arrangement 1 has Sub C suppressed (the other two un-suppressed)
Arrangement 2 has Sub B suppressed (the other two un-suppressed)
Others in the office seem to think this should be done with reference sets (I am not very familiar with reference sets and the others are not very familiar with using arrangements in this fashon).
So, I wanted to pose the question here. Which method (arragements or reference sets) is appropriate for this task and why? Or are there other methods that would be even better.
FYI, We are running NX7.5/TC 8.0
Thanks!





RE: Arrangement vs reference set
What you have described so far, using Arrangements, should work fine, and long term it will be much easier to manage and update your product designs when needed.
Reference Sets were designed to FILTER out things like construction geometry (curves, surfaces, datums, points, etc.) which is not needed when working with the finished part as a Component in an Assembly. Technically, life will generally be much easier if the ONLY Reference Sets found in an Assembly were those applied to the lowest piece part level, the actual parts where the geometric models of your product were created, NOT where they are being assembled. That is what Arrangements were designed to do.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Arrangement vs reference set
RE: Arrangement vs reference set
RE: Arrangement vs reference set
If we compare the method to arrangements, it gets clearer.(?)
Arrangement A+B ( C suppressed)
Ref set method : then Sub C should use reference set "Empty"
- or a , in Sub C, manually defined ref set called "A+B" which is Empty ( nothing selected)
Sub C should also contain a ref set "A+C" which equals "entire part"
The reverse should then be defined in the Sub B.
This way one could select both Sub B and Sub C and select reference set "A+B" or "A+C" and it would have a similar result to the arrangements.
But, if you would ask me for a recommendation, i would say Arrangements.
The same
RE: Arrangement vs reference set
I have my main assembly with arrangement A & B
For my assembly drawing, I inserted a base view and selected Arragement A. Then I added another base view and selected Arrangement B.
After inserting my parts list, I see that I have the main machine as qty 1, Tool set A as qty 1 but tool set B does not show up on the BOM (the assembly navigator shows it as suppressed).
I would like for my BOM to be lined to the drawing (i.e. no manual entry). It there aw ay to get the views I have with the desired BOM?
RE: Arrangement vs reference set
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Arrangement vs reference set
That makes sense. So, if I wanted an upper level drawing with 1 frame and one tool plate A & 1 tool plate B how would you suggest this be layed out?
RE: Arrangement vs reference set
Not sure if there are special tools or techniques to creating an exploted view??
RE: Arrangement vs reference set
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.