Showing Part Details on Assembly Drawing 1

[Mathew Kowalski]

I'm curious to know if anyone puts individual part details on assembly drawings.

I've done this in several places, usually because it worked best for their own shop. Sometimes this was for welded and bolted assemblies.

I'm looking to implement this at a rather small company simply to reduce the amount of paper work, administration required for each file, quoting, and simply checking drawings. There is not enough people handle the flow of drawings sometimes.

 

[SeasonLee]

Per 2018 version, Section 4.1 (p) Fundamental Rules

All details on individual part may distort the features at assembly, so details on individual part will not apply at the assembly level per the Fundamental Rules mentioned above.

Season

 

[3DDave]

That has been done, though I dislike the use of welding details where their individual dimensions stack up with welds to produce overall dimensions as this is really doing process planning on the engineering drawing. Any change in the skill of the welder can produce discrepant weldments and a lot of finger pointing.

The usual defense against this should be dimensioning the finished weldment, but this is often attacked by the finger pointers who complain about "double dimensioning" even though section "p" above says that it is not.

 

[Mathew Kowalski]

To clarify; there would be no part drawings. The details that would normally be on the part drawing are instead on a second/third sheet of the assembly where only the individual parts are shown separately from the assembly.

 

[3DDave]

Same thing. It's been done. Good news is one drawing per assembly. Bad news is handing out revisions of all the sheets every time one of the parts changes. Typical good case is where a sheet metal part is getting press-in-nuts or a plate is getting inserts

 

[looslib]

We do this typically with weldments. One or 2 sheets show the welded assembly and additional sheets are used for all of the details.

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

Ben Loosli

 

[ctopher]

Each part and assy with it's own dwg. Each assy with a PL/BOM. Think of it as how would you stock and track each one.

ctopher, CSWP
SolidWorks '17
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SolidWorks Legion

 

[jassco]

Hi, Mathew:

If you detail an item on an assembly print, which assembly print do you choose to detail this item if it is used in multiple assemblies?

The most efficient way is something called "normalization". Each item has its own print just as ctopher described. If you study database, you will see normalization of records, or items in this case.

Have a nice weekend!

Best regards,

Alex