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lheiden1-Visitor
1-Visitor
May 21, 2013
Question

BOM balloons

  • May 21, 2013
  • 3 replies
  • 4768 views

Anyone know how I can have 3 assemblies on my drawing with 1 BOM.

each assembly has the same press and nest, each assembly has a different punch on the press ram.

I need the BOM to show all of the items in the 3 assemblies and each assembly pictured to have the balloons

shown per item.


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3 replies

J
James621-Visitor
1-Visitor
May 21, 2013

Put everything into only one assembly, for which you can make the BOM in the assembly drawing.

Then make 3 different representations of that assembly, and show views of the representations in the assembly drawing side by side with the full BOM.

To show ballons on the views from reps make dummy BOMs for each of these rep views outside the border of the drawing. You will then have multiple BOMs in your drawing, and so you will get asked to select a BOM everytime you will want to place a BOM Balloon.

T
TomD.inPDX17-Peridot
17-Peridot
May 21, 2013

There are indented BOMs out there (I think some of the tutorials have them) but they are unwieldy as far as selecting the structure depth you want to show.

But I agree with Jakub on this one; assemble all three into a next level. I would question the logic of your original goal when only one part changes. It is logical to manage the single press without the tool change part at a lower level. Not that every request is logical, of course.

Just another example to -not- use the tools as intended I have -never- used the built in BOM structures or BOM balloon features. My clients (employers) were just too fickled about what they -really- wanted and managing a manual BOM table was always the logical solution.

J
James621-Visitor
1-Visitor
May 21, 2013

Oh, I've actually forgot to tell the most important thing here.

That is if you really want to go the route with multiple BOMs of multiple simp reps, then you are gonna run into problems with INDEX of all the balloons, in case you don't have the same amount of components in each rep, and the main assy. Which is never the case.

You'd then need to have some sort of user defined parameter like SORT in every part, that is being read into your BOM, and according to which this BOM is being sorted, and also have some user defined BOM balloons that would only read this SORT parameter from your BOMs.

It's not really easy to understand, and get everything ready for this method. This is the way I make assembly drawings, cause I think this is the most bulletproof way, if you consider making changes which usually come after a long time.

You can always try something simple like adding dummy models into simp reps with excluding those from the master rep, which then becomes other than master rep of course, but at the end of it all, doing just that always leads to a huge mess.

I've never heard of indented BOMs.

Oh, and manual BOM tables?

L
lheiden1-VisitorAuthor
1-Visitor
May 21, 2013

I have an ITEM param. in my start part. this drives the BOM ballons. Once you insert the table you pick

table

bom balloon

set param

pick the first item in the bom (#1) 1x, rpt.index, pick it qagain asm.mbr.item

now the balloons are driven by the ITEM # you assigned to the model when you designed it.

T
TomD.inPDX17-Peridot
17-Peridot
May 21, 2013

See if you have a file called bom_table.tbl in one of the elearning/Lab and Demo files folders. This BOM will list everything in your assembly. So if you do as Jakub suggests, put all 3 in one assembly, you can get a full BOM of everything included.

This file is included in the UPDATE from WF(whatever) to Creo tutorials. With the pre-determined ITEM parameter, you should be able to customize this table to do what you want.

I would attach it but I might be flogged for that.

Patriot_1776
Patriot_177622-Sapphire II
22-Sapphire II
May 21, 2013

I used to hat the repeat region BOM's, but then I worked at a company where it was policy to use them, and I actually learned to be pretty good at it, with the help of getting to take apart BOM's made by "expert" contractors who came in there and set it up before me. I learned a ton, and think the BOM I ended up with there is even better. If you take the time to get all the proper parameters in the part from the start, and are dilligent about your CAD models, they work great, and I've never seen a mistake. If it's done sloppily, well....GIGO.....

Depends on what you need. If you've got a ton of existing models (especially from outside vendors/McMaster, etc.) with parameters all over the place, then just a table will work better. If you have a good start part and rigidly adhere to certain practices, then repeat regions work great. I had mine sorting by model type (assy, part, etc.), then by vendor parts, weld filler, lube/sealant, paints/coatings, etc. You can (and should) always fix index to prevent the index numbers changing, and use "deleted" parts to replace ones that are deleted, as placeholders. Fix index works on simplified reps well when you are doing things like process dwgs.

Actually, I think I posted my BOM and maybe the balloons somewhere here in another similar thread.

Best of luck!

J
James621-Visitor
1-Visitor
May 21, 2013

That sounds great, Frank. I guess your repeat region took a while to build.

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