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Re: Custom Variables for CALLOUT_FORMAT in .hol Files

From "JANES" <djanes@cox.net>
Newsgroups comp.cad.pro-engineer
References <11ecb0bd-5536-4ba5-b123-f8c235dd7eb2@googlegroups.com>
Subject Re: Custom Variables for CALLOUT_FORMAT in .hol Files
Date 2013-05-05 12:37 -0700
Message-ID <2vKdnQ8flcGkKBvMnZ2dnUVZ5gednZ2d@giganews.com> (permalink)

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First, congratulations on being the first (that I know of) to request a hole table for helical 
thread inserts. After about 10 years of bitching by Pro/e users, PTC finally came up with NPT/NPTF 
in their standard hole functionality. IOW, don't hold your breath waiting for STI holes and callouts 
to be added.

Second, so that I understand what you're trying to do, I'll tell you what I understand, so far. 
You've been into the help files and found the .hol tables and the usually blank line with 
CALLOUT_FORMAT. And you've started to experiment with creating a custom hole note for your inserted 
holes. In addition, you've come up with some of your own requirements, such as putting everything in 
a single hole table for inserts and adding/reusing parameters in the table.

So, some things to keep in mind: while the table is quite flexible, in its crudeness, each parameter 
and the header names are reserved and serve different purposes. Some are real numbers which drive 
geometry creation and are directly tied to it in a sketch, unseen unless you go into sketch mode; 
some are simple text, such as THREAD_ID, which can be changed without consequence to the geometry or 
anything else, for that matter.

That said, it would be a simple matter to amend the "10-24" content of THREAD_ID to "10-24 UNC-2B" 
and if you wanted another with a tighter tolerance, duplicate the existing table with the THREAD_ID 
as "...UNC-3B" with possibly changed tap drill sizes. Or, you might consider merging file contents 
(UNF into the UNC file) then renaming header parameters to THREAD_SERIES1 and THREAD_SERIES2. In 
your CALLOUT_FORMAT, you'd use &thread_series1, etc to indicate UNC or UNF. However, here you could 
get into a little some evaluation and programming not supported directly in the crude table 
functionality.

Finally, a question: is this for a captive machine shop where you can make "gentleman's agreements" 
on such things as hole callouts? I wonder only because what you're requesting is so out of accord 
with any standard, ASME or MIL, that I've seen before, I'm curious why you're going through these 
gyrations!?! Specify an insert, 10-24x2D and in your table have a line for each variation, like 1D, 
1.5D, 3D. The visual part depends on a sketch and a cosmetic to show the thread crest diameter and 
the cosmetic is built into the thread definition.

In the end, what this calls for is a more sophisticated interface, capable of parsing through the 
master table based upon a selection of drop-downs and inputs so you eventually narrowed your 
selection to a single hole with accurate geometry and an acceptable callout. Maybe by CREO 10. If 
PTC is still around, by then.

David Janes

"Garrison Burger"  wrote in message news:11ecb0bd-5536-4ba5-b123-f8c235dd7eb2@googlegroups.com...

Is there any way to add a custom variable to each FASTENER ID that I can use in specifying 
CALLOUT_FORMAT?

I am trying to make a table for STI tap holes, for both UNC and UNF threads. I would like the note 
to look like this:

10-24 UNC-2B STI
DRILL .76
TAP .45 MINIMUM
(FOR 10-24 HELICAL INSERT)

I don't know how to make it that the "UNC" in the first line can be either UNC or UNF. I tried 
adding a column onto the end titled "SERIES" and refer to &Series in my formatting, but Creo seems 
to not like this.

Obviously, I could make 2 .hol files, one for UNC and one for UNF but that is not ideal. Since I'm 
not using the "PERCENT_THREAD" value, it does seem to work by putting the data there, but that seems 
like a bass-ackwards way of doing things.

Any ideas?




-----------------------------------
Creo 2.0 

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Custom Variables for CALLOUT_FORMAT in .hol Files Garrison Burger <burgerga123@gmail.com> - 2013-04-09 17:09 -0700
  Re: Custom Variables for CALLOUT_FORMAT in .hol Files "JANES" <djanes@cox.net> - 2013-05-05 12:37 -0700

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