Drawing List of material revision
Drawing List of material revision
(OP)
Revising the list of material. Drawing will be Rev B.
Item 9 is a swivel leveling foot.
Engineer wants to replace it with a non-swiveling foot.
This is a new company I am with now. Very lax drafting standards here.
Should Item 9 be lined through (deleted) on LOM and add new item # for new foot, (rev bubbles added where needed).
Or should Item 9 just be revd and description/part replaced with new foot.
Fit form function... well it is the same size, does the same thing, but it is a different part.
Any opinions?
Thanks
Item 9 is a swivel leveling foot.
Engineer wants to replace it with a non-swiveling foot.
This is a new company I am with now. Very lax drafting standards here.
Should Item 9 be lined through (deleted) on LOM and add new item # for new foot, (rev bubbles added where needed).
Or should Item 9 just be revd and description/part replaced with new foot.
Fit form function... well it is the same size, does the same thing, but it is a different part.
Any opinions?
Thanks





RE: Drawing List of material revision
"Item 9 should be lined through (deleted) on LOM and add new item # for new foot, (rev bubbles added where needed)."
However, a quick look in ASME Y 14.34 & 14.35 and I couldn't find this explicitly stated.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drawing List of material revision
The revision history or change notice should identify "Item 9 was foot co. p/n 12, now p/n 13.
Why tinker with the rest of the drawing needlessly?
RE: Drawing List of material revision
Either would be vastly superior to the way things get done around here...
RE: Drawing List of material revision
Chris
SolidWorks 10 SP4.0
ctopher's home
SolidWorks Legion
RE: Drawing List of material revision
Call it a day.
Ted
RE: Drawing List of material revision
However, as I mentioned above, a quick look through 14.34&14.35 didn't turn up much to support that - I may just have overlooked it though.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drawing List of material revision
I had wanted to just strike through. The checker said he had never seen it done that way before.
I can see a case for both methods.
Thanks
RE: Drawing List of material revision
What CAD software are you using?
When I first hacked with SolidWorks 2001, I determined that the strike-through capability of their bill of material software was not reliable. I made a point of not using it. Admittedly, SolidWorks has had lots of time to fix this bug.
Another issue with SolidWorks, and I am sure, lots of other stuff, is what happens after you delete the bill of material, or the view controlling the bill of material? There goes your strike-through. If my drawing view does not work, I delete it and start again. This is easy, and I wind up with a good, readable assembly drawing.
We are using SolidWorks' Excel BOM. Sometimes, this becomes corrupt, and there is no choice but to delete it and insert a new one.
Take the case that you have implemented strike-through on your BOM, and you have a requirement to copy and paste the BOM to some other application. In an Excel BOM, strike-through is implemented by fonts. This will not work in a text only application like Notepad, or a database.
There are a lot of good reasons to use strike-through on an old-fashioned, hand lettered BOM. I would be very cautious about using it on a computer.
RE: Drawing List of material revision
Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services
www.infotechpr.net
RE: Drawing List of material revision
RE: Drawing List of material revision
Meaning that your strike-through is completely unintelligent?
One of the objectives of a 3D CAD system is type-once-use-everywhere. The stuff that is not required on requisitions or in MRP, either should not be there or it should be ignored.
What happens when your in-house CAD monkeys check out your drawing with the line through the BOM item, and start changing stuff?
RE: Drawing List of material revision
The model and LOM are not connected. LOM is not generated. It is hand typed in.