Dimensioning repeated hole patterns
Dimensioning repeated hole patterns
(OP)
I'm attempting to dimension a drawing of a large plate (lots of holes) and am trying to find ways to avoid the inevitable mess of crossed dimensions. There is a pattern of 4 holes that repeats in about 10 places and I was wondering if there was a way to create a detail of the pattern and reference that detail 10 times. I can then dimension 1 hole for each pattern and refer to the detail.
Does that make sense? Any help would be appreciated, thanks.
Does that make sense? Any help would be appreciated, thanks.





RE: Dimensioning repeated hole patterns
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RE: Dimensioning repeated hole patterns
RE: Dimensioning repeated hole patterns
RE: Dimensioning repeated hole patterns
DETAIL A
10 PLACES
SCALE 1:1
(I don't use X (as in 10X) in this particular instance because that doesn't see quite as clear as spelling it out. I will use X for multiples at any other time.)
So far, no vendor has every misinterpreted this method or even questioned it.
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: Dimensioning repeated hole patterns
If you apply the note "10X" to the rectangular pattern or pitch circle in your detail, I would think things would be pretty clear. I have gone 10X 6X Ø6.4 on drawings.
If you have an accurate manufacturing process such as machining, you can apply a single positional tolerance to all your holes. If your process is less accurate, you will need a composite tolerance, and you will have to set up your dimensions so that this makes sense.
JHG
RE: Dimensioning repeated hole patterns
When I've done this, the 10X would have to be repeated on multiple dimension. For me, it's quicker and cleaner to just type it in one location to cover the entire detail.
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: Dimensioning repeated hole patterns
Otherwise as others say you basic idea is sound, just make sure you dimension it correctly. I too sometimes spell out places rather than just X like fcsuper for this type of application, however technically you don't need to.
KENAT, probably the least qualified checker you'll ever meet...
RE: Dimensioning repeated hole patterns
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