Showing results for 
Search instead for 
Did you mean: 
Showing results for 
Search instead for 
Did you mean: 

Dimensioning Patterns on Drawings


Dimensioning Patterns on Drawings

Good afternoon,
Many of our older (non-Pro/E) drawings have groups of holes dimensioned in
the form:

'n' HOLES TAP M10x1.5 THRO' ON AN EQUAL PITCH OF 'x' = 'y'

In this case, y=x(n-1)

When I create a regular dimensional pattern in Pro/E, I can readily show the
'n' and 'x' parameters, but not the 'y'.
If I change the pattern to a table, I have 'n' and 'y', but not 'x'.
If I create the 'y' and 'x' dimensions in the drawing, I cannot embed the
'n' parameter, because I cannot associate a parameter with the note of a
created dimension.

Is there a way, without creating relations in the part or in the drawing, to
have Pro/E volunteer these three numbers so that I can show them on a

By the way, the reasoning behind this form of dimensioning goes like this:
Each individual x pitch has its own general tolerance applied to it, but the
overall dimension also has its own general tolerance applied to it, thus
telling the manufacturer that it is not acceptable for all the x dimensions
to be on top tolerance in the same direction. (I think that probably makes
the 'non-cumulative' note redundant, as well, but that's another argument)

WF2, M220

I suspect I already know the answer...


John Wayman, C.Eng, FIED
Senior Mechanical Engineer

This email, including any attachment, is a confidential communication
intended solely for the use of the individual or entity to whom it is
addressed. It contains information which is private and may be proprietary
or covered by legal professional privilege. If you have received this email
in error, please notify the sender upon receipt, and immediately delete it
from your system.

Anything contained in this email that is not connected with the businesses
of this company is neither endorsed by nor is the liability of this company.

Whilst we have taken reasonable precautions to ensure that any attachment to
this email has been swept for viruses, we cannot accept liability for any
damage sustained as a result of software viruses, and would advise that you
carry out your own virus checks before opening any attachment.

This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.