I have an assembly with 55 different parts (no subassemblies) and I am trying to get the BOM order sorted out. I have my BOM set to "follow assembly order" and the reordering of the BOM has been going the way I would expect as I go back and reorder the assembly. I have one part, however, that is not moving in the BOM when I move it in the order of the assembly. There are only eight instances of this part - one initial part and seven others created with two separate patterns. I've moved this part to the bottom of the assembly order and the two patterns have been moved to be the bottom most patterns in the Feature Manager. However, this part continues to stay in the middle of the BOM even with rebuilds to both the assembly and drawing files. What am I missing?


Categories: Drawings and Detailing

Comments
Last comment By: Glenn Schroeder   Mon, 16 Apr 2018 17:38:48 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

I don't know what you're missing, but why not just drag that row to the bottom and move on?

By: Glenn Schroeder  Mon, 16 Apr 2018 15:22:52 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

Has the item number of that part been set manually? Try clicking on that part on your bom and deleting the item number. It may give you a pop up window asking if you want to continue editing the cell. Click yes. After you delete the number it should put the correct item number in.

 

It probably isn't the problem, but make sure "Do not change item numbers" is not checked on your BOM.

 

Good luck,

Carrie

By: Carrie Ives  Mon, 16 Apr 2018 15:30:02 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

I haven't been able to figure out how to drag a row of the BOM to reorder it. I'm using SW2016. Is this a newer feature?

By: Patrick Dunleavy  Mon, 16 Apr 2018 15:38:23 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

The item number has not been set manually, but I suppose if all else fails, I can override it to reorder it. Thank you

By: Patrick Dunleavy  Mon, 16 Apr 2018 15:39:23 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

This is the precise reason why I never, ever use component patterns.  They do not play well with 'Follow Assembly Order'.  I've mentioned it a few times in various discussions here.  I think you may be the first person outside my co-workers to validate the behavior.

 

It seems as if SW retains information on when the pattern was created and then uses that information to determine where to put the original component in the BOM order.  It can seem like an intermittent problem, because it depends on how you created your model: pattern as you go, or pattern everything at the end or a mixture of the two.

 

For what its worth, I use Copy With Mates instead.

By: Jim Sculley  Mon, 16 Apr 2018 16:25:30 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

Seems like the opposite should be true... Never ever use "follow assembly order" to control your BOM order.  It locks you into certain ways of building your assembly that are not efficient. 

By: Josh Brady  Mon, 16 Apr 2018 16:37:03 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

I can drag to reorder in 2016. You have to grab in just the right spot to do it. I just checked and I was able to do it by clicking and dragging about where the red circle is in the image below.

 

It took a few tries before I got it to work.

By: Carrie Ives  Mon, 16 Apr 2018 16:48:17 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

Component Patterns are so great though! I mostly use Pattern Driven Component Patterns - and pattern bolts on Hole Wizard features.

In my world the time savings, and the better assembly performance outweigh the BOM order issue. 

 

I think this is what Schroeder was referring to: pop out the column on the left, which has icons for each row, and you can drag those icons to any row to reorder.

 

Careful, with an Indented BOM you can even drag components into a subassembly where they don't exist (it does not change the model).

 

Every company situation is different, but I tend to think too much importance can be placed on the BOM order.  When it gets to be messy I just sort by part number - then at least someone unfamiliar with the system can easily find a specific item.

By: Brian McEwen  Mon, 16 Apr 2018 16:52:43 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

I've managed to get the BOM to reorder correctly by doing the following:

 

• Save and close assembly and drawing

• Rename the part in question

• Reopen assembly and point it to the part file with new name

(BOM reorders)

• Repeat to change the part file name back if you wish.

 

For anyone having this problem in the future, this should resolve it. However, do read through the other replies. Reordering the BOM by dragging rows within the BOM is more efficient and does not restrict you in your assembly.

By: Patrick Dunleavy  Mon, 16 Apr 2018 15:52:49 GMT
Re: BOM not reordering the way I anticipated - what am I missing?

Patrick Dunleavy wrote:

 

I haven't been able to figure out how to drag a row of the BOM to reorder it. I'm using SW2016. Is this a newer feature?

 

Carrie Ives  posted the screenshot.  You can click there and drag rows up and down.  As far as I know we've been able to do that forever.

By: Glenn Schroeder  Mon, 16 Apr 2018 17:38:48 GMT
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