Equal distance dimensions
Equal distance dimensions
(OP)
Hello,
I have usually made drawings where a pattern if holes appears, and I usually when I use linear dimensions I dimension everything, but I haven't seen many examples that show how to say that the set of holes repeats a # of times for a specific distance. Except for the file attached, I didn't even know that the "=" could be used?
Anybody has other examples of multiple equidistant dimensions?
thanks for the help.
I have usually made drawings where a pattern if holes appears, and I usually when I use linear dimensions I dimension everything, but I haven't seen many examples that show how to say that the set of holes repeats a # of times for a specific distance. Except for the file attached, I didn't even know that the "=" could be used?
Anybody has other examples of multiple equidistant dimensions?
thanks for the help.





RE: Equal distance dimensions
The common way looks like this (taken from ISO standard, ASME has similar clause):
"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future
RE: Equal distance dimensions
RE: Equal distance dimensions
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Equal distance dimensions
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Equal distance dimensions
Direct tolerancing is supposed to be reserved primarily for size dimensions, so I'd say most methods of locating features (equally spaced, repeating, or otherwise) should generally be used with basic dimensions only. The examples in the standards often don't show the boxes, but I consider this to fall under the "figures are incomplete" category. I just assume there's a hidden "UNTOLERANCED DIMENSIONS ARE BASIC" note to go along with many of the figures.
- pylfrm
RE: Equal distance dimensions
I totally agree with your statement that direct tolerancing is for size only. Given that, the part cries out for profile of a surface tolerancing where all dimensions are BASIC.