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Drawings of various stages of manufacture

webrits
1-Visitor

Drawings of various stages of manufacture

Hi all,



I'm trying to figure out the best way of showing the various stages of
manufacture of a part/assembly.

Before I go on we haven't got Pro/Process.



The part is a complex cylindrical (turned) part. Here's the basics of
manufacture.



Stage 1 - First the part (Part A) is faced to length, drilled in each end
and an axial slot machined in the OD - This stage requires a drawing
(drawing #1)



Stage 2 - Next, a cover (Part B) is welded (assembled) into the machined
slot and the OD of the part is turned to size. - This requires another
drawing (drawing #2)



Stage 3 - Finally all the rest of the machining takes place - This requires
another drawing (drawing #3)





To achieve this I modelled Part A completely to its final state (stage 3)
and created a simplified rep (rep X) to represent the part at Stage 1



Next I created an assy and assembled Part A / Rep X into the assy along with
Part B, then added an assy cut to represent the turning of the OD (Stage 2)
- The problem with this is the assy cut does not show up on Part A in the
assy - after talking with tech support I'm informed this is normal,
apparently you cannot cut a simplified rep part that is in an assy - is this
correct??



So to workaround this I added the Stage 2 OD cut to Part A and created
another simplified rep (rep Y) . (Basically a copy of Rep X plus the Stage 2
OD cut feature). Then assembled this into a new assy along with Part B. This
assy automatically becomes an on-demand simplified rep.



For the final stage the Master Rep of the Stage 2 is what used.





I hope all this making sense!!



Anyway, can anyone suggest a better, less complex method of creating what I
have done above? I dread trying to figure out all this in 12 months time
when someone wants to revise the drawings.



Many Thanks,



Paul Moss

WF4.0














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3 REPLIES 3

Sounds like you could use a Family Table instead of Simp Reps.

The way we would do this is to family table instance each stage of
manufacture



OP10, OP20, etc...



1. Create the generic part (i.e. Block) >>>optionally include the
finished part as surfaces using copy-geom

2. Create the family table, and include some parameter or such in the
table so the table will be created (we use item #,description, material)

3. Create an instance for the OP 10 part ONLY in the generic

4. Open the OP10 part and add the cut features to it (they will show
up in the family table automagically).

5. Now go back to the generic part and create an OP20 instance

6. Make sure that all of the OP10 features are included in the OP20
part in the family table of the generic. (don't leave them as * make
them Y or N)

7. Open the OP20 part and add additional cut features (they will
automatically show up in the family table)

8. Rinse and repeat as needed to add all of the mfg ops.



Now, all of the manufacturing sequences are saved as instances in one
place. NEVER use the generic model in other assy's etc... always use
the instance.



BTW, we will do this and include the customer model placed in the block
as reference surfaces using a copy-geom feature. This way we can create
sketches that are offset, etc from the finished geometry.







Christopher Gosnell

TRIGON INC.
FPD Company
124 Hidden Valley Road
McMurray, PA 15317
PH: 724.941.5540
FX: 724.941.8322
www.fpdinc.com
BobFrindt
2-Explorer
(To:webrits)

We use the same methods as you've described and they work well, but Paul
has to do some of the machining after assembling and welding the component
in place. I think he would need at least two family tables. One for the
part and one for the assembly.

Bob Frindt
Sr. Designer
Parker Hannifin Corporation
Parker Aerospace
Gas Turbine Fuel Systems Division
9200 Tyler Boulevard
Mentor, OH 44060 USA
direct (440) 954-8159
cell: (216) 990-8711
fax: (440) 954-8111
-
www.parker.com



Chris Gosnell <->
11/25/2009 12:40 PM
Please respond to
Chris Gosnell <->


To
-
cc

Subject
[proecad] - RE: Drawings of various stages of manufacture






The way we would do this is to family table instance each stage of
manufacture

OP10, OP20, etc?

1. Create the generic part (i.e. Block) >>>optionally include the
finished part as surfaces using copy-geom
2. Create the family table, and include some parameter or such in the
table so the table will be created (we use item #,description, material)
3. Create an instance for the OP 10 part ONLY in the generic
4. Open the OP10 part and add the cut features to it (they will show up
in the family table automagically).
5. Now go back to the generic part and create an OP20 instance
6. Make sure that all of the OP10 features are included in the OP20
part in the family table of the generic. (don?t leave them as * make them
Y or N)
7. Open the OP20 part and add additional cut features (they will
automatically show up in the family table)
8. Rinse and repeat as needed to add all of the mfg ops.

Now, all of the manufacturing sequences are saved as instances in one
place. NEVER use the generic model in other assy?s etc? always use the
instance.

BTW, we will do this and include the customer model placed in the block as
reference surfaces using a copy-geom feature. This way we can create
sketches that are offset, etc from the finished geometry.



Christopher Gosnell

TRIGON INC.
FPD Company
124 Hidden Valley Road
McMurray, PA 15317
PH: 724.941.5540
FX: 724.941.8322
www.fpdinc.com
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