[PCB_FORUM] Re: drill symbols

Does the board house really use the drill legends? For a while my fab drawings 
were getting corrupted, but the fab house didn't say anything. I guess during 
that time they used the drill file only. 
 
-----Original Message-----
From: Tom Wood <tom@xxxxxxxxxxxxxxx>
To: icu-pcb-forum@xxxxxxxxxxxxx
Sent: Mon, 23 Jan 2006 15:20:43 -0800
Subject: [PCB_FORUM] Re: drill symbols


What is wrong with having 0.125" drill characters?
 
Tom
Arira Design, Inc.
408-844-8433 x112 
 



From: icu-pcb-forum-bounce@xxxxxxxxxxxxx 
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Bolman, Shirley H
Sent: Monday, January 23, 2006 3:03 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: drill symbols
 
It was my understanding that the width and height is the dimension of the text 
of the character
rather than the size of the hole which is defined on the layer tab.
 
Imagine a  board with a lot of plated thru .125 holes with  .125 drill 
characters!
 
Shirley in Oregon
 



From: icu-pcb-forum-bounce@xxxxxxxxxxxxx 
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Dave Seymour
Sent: Monday, January 23, 2006 2:12 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: drill symbols
Let me re-word the 2nd paragraph.

This way the hole "figure" and the drill "size"are always the same, Now you
have one to one correspondence and one would never run out
of figure combinations. 



Dave Seymour wrote:


Gary,

Set the figure as a circle that is the same size as the drill.

Drill Dia = .062
Figure = .062
Character = P ( P= Plated, N = Non-Plated)
width = .062
height = .062

This way the hole and the drill are always the same, Now you
have one to one correspondence and one would never run out
of figure combinations. 

Side note: This is how in the old days I would get the drill size to display,
before the display button was added.

In this electronic age, each of the vendors, techs, engineers I work with has a 
copy
of the Allegro viewer or a CAM tool. If anyone wants to "really" know the
diameter, then they hit the "information" button. 

Hope this helps.
Dave


Gary MacIndoe wrote:


Hey all,
The padstacks in our library have a unique drill symbol for each drill size 
(either a "Figure", a "Character" or
a combination of the two).
This is a "mature" library, and I'm starting to run out of symbols with all of 
the odd drill sizes I'm adding lately.
What do you do when all of the combinations are used up?  Anybody else have 
this problem?
Thanks for a clue!
Gary E. MacIndoe
PCB Design Engineer
Advanced Micro Devices
Longmont, Colorado



-- 
Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
Morrisville, NC 27560
 
Direct: (919)653-4249
Main: (919)653-4180
Fax: (919)653-4297
 
Dave.seymour@xxxxxxxxxxxx
 
  



-- 
Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
Morrisville, NC 27560
 
Direct: (919)653-4249
Main: (919)653-4180
Fax: (919)653-4297
 
Dave.seymour@xxxxxxxxxxxx
 
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