how to update quantity of parts from assy and put in part level drawing 4

[gani009]

Hi All,
I would like to keep number of Quantity parts required for each part in part level drawing.
For Example:
I have
Assy.prt

part1.prt​

part1.prt​

Part2.prt​

To make Assy.prt total two part1.prt parts and one part2.prt is required. So in part1.prt part level drawing I need to mention 2 qty required for assembly. This information will useful for procurement team.
In the previous posts
Niedzviedz has posted journal
Journal thread for adding no of parts in quantity attribute in each child part then we can call in part level drawing. so far it's working great.
Now I want add one more part (example: part1.prt) in assembly. So Quantity of part1.prt will be 3, If I re run the journal it qty attribute is getting update Instead of that is there any way to make it auto update like parts list update

Regards,
Gani

 

[cowski]

Give the procurement team a bill of material; it should list the parts and quantities that make up an assembly.

A part drawing should be independent of the assembly it is used in. Adding assembly information to the part drawing is BAD PRACTICE. At best, such a system will be difficult to maintain. Do yourself a favor, do NOT add quantity information to part drawings.

www.nxjournaling.com

 

[gani009]

Hi Cowski,

My company is following this ways since so many years. That's the reason I want to make it some automate to eliminate manual errors

 

[cowski]

The system is why you have the errors in the first place!

www.nxjournaling.com

 

[MFDO]

Cowski, In a Detail Drawing, Quantity is a primary requirement! Because of a limitation in the software, we cannot avoid it.

Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V9.0 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[cowski]

In a Detail Drawing, Quantity is a primary requirement!

No it is not. The detail drawing should be independent of the assembly drawing.
Here is some suggested reading material.

www.nxjournaling.com

 

[gani009]

Hi Cowski,
What ever quantity mentioning in part level drawing, it's like as information for specified assembly

 

[MFDO]

Cowski, If Detail Drawing’s Quantity is always 1, then why do you bother to include it in the title block?

Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V9.0 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[cowski]

No where in my title block is quantity mentioned.

www.nxjournaling.com

 

[looslib]

There is no way to programatically to modify a child component with a parameter of the number of times it is used in an assembly. Just like you cannot modify the child component file with the find number. These numbers can change if you add or remove components to the assembly. Also, how would you know which assembly the qty or find number referred to from the component level.

Component files are standalone for a reason. They could be used in any number of assemblies with any quantity. Trying to maintain this data from the component level is just not realistic. For some components, it could take multiple sheets just to list the Next Higher Assembly and Qty required. If you need to order components for assembly 123456.prt, then use the BOM of that assembly for your ordering reference.

One of the great things about CAD and PLM software is the ability to search and reuse existing parts in new designs. If you have 25 designers and each needs a plate 6" in length by 4" wide with a 1/2" hole in the center, why would you allow them all to design and document that part and have 25 part numbers that could be handled with 1. A lot of wasted effort and man-hours spent recreating something that already exists.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[gani009]

Hi Looslib,
Your correct but This will apply for standard component but my case is specific assemble and which will use for specific assembly it wont use for any other assemblies. Like I am making tooling fixtures so my fixture design will have specified components

 

[MFDO]

Cowski, you are special!

Machinist gets the Drawing sheet and it should specify how many pieces needed to complete a specific job! If we don’t enter the amount at the beginning, somebody else will write the quantity in the sheet before drawings reach manufacturing.


Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V9.0 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[gani009]

@MFDO, I have same situation what you are talking about. I need to give same info for shop floor

 

[JohnRBaker]

I thought that was the sort of information that went on the 'Work Order', at least that's what we called it where I used to work, a document, along with a copy of the drawing, that was included in something we called a 'traveler', that accompanied a job as it moved through the shop.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[MFDO]

As the designer I know my design more than any body else. It's my duty to give all the necessary information including the quantity in the sheet called DETAILED DRAWING (This is the only system we learn internationally to communicate globally) to the toolroom. It's a shame to let someone else to figure out the quantity needed or having to chase after other supporting documents which defer from company to company.

Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V9.0 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[JohnRBaker]

Just because it's a separate document does not automatically mean that it has to be filled out by someone else. The Drawing describes what is to be manufactured while the 'Work Order' provides the information about how many are to be fabricated.

But if your system works for you, fine, just keep in mind that NX may not always be able to fully support the workflow that you desire, at least not without a lot of extra work and complexity in what you produce.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[jerry1423]

So every time the quantity of parts made changes the detail drawing must change ?

Jerry J.
Milwaukee Electric Tool

http://www.milwaukeetool.com/

 

[PrintScaffold]

Weird. If certain part is included in different assemblies in different quantities - say, 5 and 7, which quantity are you supposed to put on a detail drawing?

http://www.cadroad.com

 

[MFDO]

John, this question came because the system doesn't work as required in a production environment. It's consuming a considerable amount of time to transfer info manually to detail drawings. (A non-value added process)

Jerry, we take extra care to operate this manual process and if a mistake happens it will be very costly with lots of fingers pointing towards us and with lots of pressure. In this situation we are issuing the next revision.

PrintScaffold, We give unique number to each part under each project # as Proj # as the suffix. This is how NX PDW work too.

I know NX geared more towards to product designers and driven by OEMs. Sadly only a very few manufacturing guys speak out to make their life easier where they spend most of their life togather.


Michael Fernando (CSWE)

http://www.solidCADworks.com

Tool and Die Designer
Siemens NX V9.0 + PDW
SWX 2013 SP3.0 X64
PDMWorks 2013
Logopress3
FastForm Advance
FormatWorks

 

[looslib]

Even working in a job shop. we still had travelers that accompanied the job to each workstation. In the traveler would be a copy of the print, work order specifying how many to make and possible a process work sheet for each operation on the traveler.

I do see where Michael is in a tool and die shop, which usually means one-off designs. He has stated that each assembly is given a unique part number and component numbers are derived from an overall base number. On initial build, the quantity of components is known for the assembly, so putting the quantity on the drawing works. BUT what happens if the customer needs to order a replacement for part XYZ-ABC-G and only needs 1, but the total XYZ design has 7 of them. The XYZ-ABC-G print is issued to the shop floor, the machinist sees QTY 7 and makes 7. Customer only ordered 1 and you now have 6 spares that may never get sold. Does engineering have to modify the drawing for this replacement order to change the QTY to 1? No value added to the engineering manager, why should his department pay for that change. Does this change constitute a revision to the drawing? Two years later the customer wants to order a replacement machine XYZ, does someone remember that XYZ-ABC-G has had the QTY changed and it needs changed back to the rev A QTY?

If you want the quantity, use a copy of the BOM and attach it to the drawing for shop floor use. Highlight the part that is attached in the BOM so the machinist can see it. There is no value added by putting the quantity in the component file and printing it on the drawing.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli