Typ, Both Sides and Other Notes
Typ, Both Sides and Other Notes
(OP)
I've attached a pdf of a drawing that shows what I'm talking about.
A hole is dimensioned to a feature that is mirrored on the other side of the part. Is it appropriate to say "BOTH SIDES" or "TYP" to indicate that the dimensions apply on the other side of the part where the feature and hole relationship are mirrored?
Using a CL would be inappropriate because the part is not completely symmetrical.
Any help is appreciate.
A hole is dimensioned to a feature that is mirrored on the other side of the part. Is it appropriate to say "BOTH SIDES" or "TYP" to indicate that the dimensions apply on the other side of the part where the feature and hole relationship are mirrored?
Using a CL would be inappropriate because the part is not completely symmetrical.
Any help is appreciate.





RE: Typ, Both Sides and Other Notes
If you have 2 of them say "2X" or if you must "2 PLACES".
Make it explicit, the 94 version says to use "X" in this application.
Or, draw your leader line across to the other hole. Leader line may not be quite the right term, I forget, but I think my point is obvious.
Functionally, is it really the distance from the ends of the 2 'tabs' that's important?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Typ, Both Sides and Other Notes
RE: Typ, Both Sides and Other Notes
Is it common practice then to say 2X and have it understood that it applies to the similar feature on the other side of the part?
I thought that someone had told me years ago to use 2X only if the 2nd feature is directly in line with the first... Which would not be the case for the dimension taken across the arms width.
What do you think?
RE: Typ, Both Sides and Other Notes
On the .150 (which I didn't notice first time) I'd suggest explicitly dimensioning the other hole. 2X or any variation would leave it slightly open to interpretation if you meant from the left or right face.
Always remember that drawing should be explicit and not open to interpretation as much as is possible.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Typ, Both Sides and Other Notes
Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services
www.infotechpr.net
RE: Typ, Both Sides and Other Notes
Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services
www.infotechpr.net
RE: Typ, Both Sides and Other Notes
RE: Typ, Both Sides and Other Notes
The standard no longer explicitly prohibits "TYP", but is is generally accepted that this is poor form, and the number of places should be used instead.
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: Typ, Both Sides and Other Notes
It doesn't let you know how many "TYP's" there are.
RE: Typ, Both Sides and Other Notes
I personally don't have a problem with TYP (it does have uses that I've never seen fully addresses by those in the absolute "no" camp), however in this case, there's no point. Just use the standard 2X. On .205 dim, you don't even need that if you place and extention line connecting the two holes.
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: Typ, Both Sides and Other Notes
It appears you have a parting flange. Simply put a note pointing to the parting flange stating "2X PARTING FLANGE"
Then on your note with the holes, put the note "6X Blah Blah Blah, EACH PARTING FLANGE"
RE: Typ, Both Sides and Other Notes
Chris
SolidWorks 09, CATIA V5
ctopher's home
SolidWorks Legion
RE: Typ, Both Sides and Other Notes
Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services
www.infotechpr.net
RE: Typ, Both Sides and Other Notes
Here people used to put the logo of their favorite sports team or similar little things on their drawings. Of course, given they didn't have checking I'm not sure of the reasoning.
Given that checking is a thing of the past in so many places it's not really a challenge or test to put something on a print so what's the point.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Typ, Both Sides and Other Notes
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: Typ, Both Sides and Other Notes
To try and add something new...
In a part like example shown, planar faces with lots of holes, and being fortunate to see many companies' drawings and talking to many fabricators, I resorted to lettering holes and referencing the letter in the dimension.
In example here, I would put a letter B beside each hole, dimension would read .205 2X 'B' / .099 4X 'B', hole callout includes 6X...INDICATED 'B', and so on with all other holes.
Numerous examples where this has aided in discussions, problem resolution, as well as fabricators indicating it's useful for them.
My Standard copy is conveniently on loan and I just don't remember if any comment on this type of practice, it's certainly not new.
RE: Typ, Both Sides and Other Notes
I use it quite a bit when I have multiple hole patterns that coule be confused with each other, for instance if they are the same or similar sizes.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Typ, Both Sides and Other Notes
RE: Typ, Both Sides and Other Notes
One example may be if you have a series of meandering and braching channels where multiple depth and width dims may actually be more confusing than helpful, and where a qty would be based on POV on how one sees counts a branching channel's beginning or ending.
There are many bad places to use TYP, but there are a few legit uses for it that are not well covered by the standard.
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group
RE: Typ, Both Sides and Other Notes
I think the deciding point was another thread on here somewhere where someone (or maybe more than 1) had a different definition of what typ meant than from how I've usually seen it implied. Given it's not in the newer versions of the standard, there is no where its definition is properly defined. So I TYP avoid it
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Typ, Both Sides and Other Notes
Another more common use I've seen is in general not callouts, but not necessary abbreviated for things like typical draft...though in the age of the model based definition, I don't see much point for this anymore.
Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group