Re: [PEDA] Vias do not tent when expected

2004-03-05 Thread Ian Wilson
On 01:14 PM 5/03/2004, Dennis Saputelli said:
there is one more point that may need clarification and which
may be at the root of the original post
the 'default' setting applied in Tool Prefs Defaults
ONLY applies when using the Place Via command
if instead you are manually routing a board
and the * key when changing layers
then the via in the Via routing style is used
and it does not carry the tenting attribute
even if it matches the size  hole of the default via
Great point and I betcha that is the root cause.

Ian



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Re: [PEDA] Vias do not tent when expected

2004-03-05 Thread Leo Potjewijd
At 04-03-04 17:44, you wrote:
hi Leo

i can't reproduce your problem, please see if i did it right

i set via default paramter to tent
Check.

i set a design rule to a big expansion to make it obvious
note: i used via specification in design rule to apply only
to the diameter and hole size of the defualt via type
Check.
The specification is not necessary
i then placed some vias nad they were tented
on an individual vias i unchecked 'tenting'
and the big expansion showed up.
Check.

this is all as expected
Check.

did i miss something ?
Yep.
All the vias that are placed during interactive routing (switching layers) 
show the big expansion , all the vias that are placed with the Place Via 
command are tented.
I route all my boards (postage-stamp size, very dense, 4 or 6 layers) by 
hand, I don't trust the autorouter to create anything useful.

snippety-snip

 I just about had it with P99SE.
*** WARNING : rant coming up ***

Because Protel99SE.exe has caused errors and will be closed. An error log 
is being created (and NOT for the first time). Last weeks' crash left 5(!) 
Ddb's too damaged to repair and I lost  three days piecing the bits back 
together from a backup tape that could not be loaded back in one piece.
Something good came out of that though: a brand new SunFire V60x... I 
installed only the bear necessities on W2kPro and converted the restorated 
Ddb's to the windows file system on a local HDD. Alas, it didn't help..
Todays crash 'only' lost me two hours of work because the P99SE auto-backup 
feature (set for 30 minutes) didn't do its job..

Sorry for the rant guys, I just had to blow off some steam (two weeks 
behind schedule now)

The weirdest part by far of all of this is that I did NOT EVER have a P99SE 
crash at home (the via problem _is_ present at the home system too).
That system (P2 @ 910 MHz) is running the _same_ W2kPro and P99SEsp6 (and 
loads of other stuff that doesn't run at work) on the _same_ amount of 
memory (768 MB).
No network though, and a different virus scanner (Norman at home vs McAfee 
at work; both set to leave .Ddb files alone)...

Right now, I'm in for some _very_ drastic measures.
Any hints?
Leo



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Re: [PEDA] Vias do not tent when expected

2004-03-05 Thread Brock Russell
Hi Leo,

I just confirmed everything you described.
Auto placed vias follow the via solder mask expansion rule. The default 
tenting attribute is ignored.
Manually placed vias have the default attributes including tenting.

Brock Russell

At 01:34 PM 04/03/04 +0100, Leo Potjewijd wrote:
At 03-03-2004 23:35, Ian Wilson wrote:
On 12:28 AM 4/03/2004, Leo Potjewijd said:
Hi.

I just discovered something strange:

I like my vias tented so I keep the tenting checkbox in the default via 
settings dialog checked.
While interactively routing a PCB I noticed that the automatically 
placed vias did not get tented (and the forementioned checkbox is still 
checked)
I do not want to end up with a board that has some vias tented and some 
not, and the global edit on the complete board afterwards is too easiliy 
forgotten.

I'm sure I'm missing something obvious, but haven't a clue
Please help me out, guys..


There are two ways to force tenting on vias - or at least there are two 
places to control the solder mask expansion.  The via has a tenting 
attribute and there is a design rule that controls solder mask 
expansion.  I have no idea which has precedence, I would hope the tenting 
attribute of the via.  However you may want to check, and play with, the 
Manufacturing-Solder Mask expansion rule.  If you make the rule expansion 
ridiculously big do the auto-placed vias follow the silly expansion?
I just did.
They (the autoplaced vias) did, too Seems the rule takes precedence 
over the default setting.
Only when the mfg rule specifically targets vias it has any effect, a rule 
specifying expansion for just surface and thru-hole pads does not change 
the expansion for the vias

Before we had the tenting attribute you had to apply a large enough 
negative expansion to force tenting.

The checkbox being tented but the actual via being untented does sound 
very odd - unless there is a conflict between the rules and the tent 
attribute.  Are the auto-placed vias the same dimensions as the manual 
placed vias?
Yep.
 Are they both vias?
Again, yep.

The manual ones aren't free pads are they? (Just asking some possibly 
silly questions.)
Hey, everyone stands the chance to overlook the obvious...

What happens if you save as ASCII and then re-load?  What does the ASCII 
file show for a tented and untented via?  The ASCII records are not hard 
to read.
AhemI would not say not hard to read, just not hard to understand..;)

The ASCII file states a neat tenting=true for the tented vias; for the 
non-tented vias there is no such  statement. I would expect 
'tenting=false', but its completely missing

Reloading the ASCII file does not solve the problem.
Further probing reveals no solutions but yet another mystery: the via 
annular rings are calculated different from pad annular rings... I've seen 
this one before, but still have no clues.

To top it all off: I'm running a fresh P99SE/sp6 installation on a brand 
new computer under a fresh installed W2kPro/sp4, all files on local disk.

I just about had it with P99SE.

Leo Potjewijd
hardware designer
Integrated Engineering B.V.
[EMAIL PROTECTED]
+31 20 4620700



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Re: [PEDA] Vias do not tent when expected

2004-03-05 Thread Leo Potjewijd
At 05-03-04 03:14, Dennis Saputelli wrote:
see my earlier response on this

snip-snip

the 'default' setting applied in Tool Prefs Defaults ONLY applies when 
using the Place Via command
As I understand now (thanks also to the wonderful explanation given by Abd 
about an hour earlier)

if instead you are manually routing a board and the * key when changing 
layers then the via in the Via routing style is used and it does not carry 
the tenting attribute even if it matches the size  hole of the default via
..and that's exactly what triggered my original posting.

All said and done, I guess my only real complaint is that there is no 
'tenting' checkbox in the rule definition dialog (or did I miss it?), I 
leave it at that.
I think that forcing tented vias by specifying a negative clearance is a 
little less than obvious to the casual observer, but if that is the only 
way to get there: what the heck!

In order to save at least a little bandwith I will now snip off all repeats 
from all previous postings which would make up more than 80% of this post..
For the interested people that just tuned in': an 'archive-get' on this 
subject will reproduce the whole discussion 'on your doorstep', so to 
speak ;-)

Thanks you Brock, Dennis, Ian and Abd.

Leo 



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Re: [PEDA] Vias do not tent when expected

2004-03-05 Thread Abd ul-Rahman Lomax
At 08:40 PM 3/4/2004, Leo Potjewijd wrote:

All the vias that are placed during interactive routing (switching layers) 
show the big expansion , all the vias that are placed with the Place Via 
command are tented.
From all the discussion which has preceded, this is exactly expected 
behavior. The Default Via is set to Tent, and the default only controls 
manual placement of vias. Autorouting and Route Interactive use a via 
specification from design rules (Routing Via Style). In the design rules, 
one controls tenting by creating a negative solder mask expansion 
(Manufacturing/Solder Mask Expansion/Via Specification). An alternate 
method to use, particularly if one wants to tent some vias and not others, 
is to convert all or some vias to free pads; the pad name can then be used 
to control whether tenting happens or not.

*** WARNING : rant coming up ***

Because Protel99SE.exe has caused errors and will be closed.
My condolences.

[...]
The weirdest part by far of all of this is that I did NOT EVER have a 
P99SE crash at home (the via problem _is_ present at the home system too).
Just to repeat, there isn't really a via problem, rather a 
misunderstanding of how the Default works and how tenting is controlled. 
Autorouted and Route Interactive-created vias do *not* follow the Default 
settings.

That system (P2 @ 910 MHz) is running the _same_ W2kPro and P99SEsp6 (and 
loads of other stuff that doesn't run at work) on the _same_ amount of 
memory (768 MB).
No network though, and a different virus scanner (Norman at home vs McAfee 
at work; both set to leave .Ddb files alone)...

Right now, I'm in for some _very_ drastic measures.
Any hints?
First of all, the virus scanner and network differences are not likely to 
be the cause, in my opinion. Rather the most likely causes, at least the 
ones I'd first suspect, are the video card or a memory problem, i.e., a bad 
chip. There are video cards known to cause Protel to crash ATI cards 
were famous for this. And a bad memory can cause, of course, all kinds of 
problems. Sometimes they will only show up with one program that happens to 
be vulnerable. As far as the bad memory possibility is concerned, I'd swap 
around memory devices, if possible, or at least run some very thorough 
memory test utilities, the kind that you let run all night

It is always possible, as well, that a particular installation has gotten 
trashed in some way, so reinstalling may be in order. Remember, when 
reinstalling Protel, to delete the *99SE* files in the System folder. (They 
aren't likely to be the problem here, but why not be thorough?)





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Re: [PEDA] Vias do not tent when expected

2004-03-04 Thread Leo Potjewijd
At 03-03-2004 23:35, Ian Wilson wrote:
On 12:28 AM 4/03/2004, Leo Potjewijd said:
Hi.

I just discovered something strange:

I like my vias tented so I keep the tenting checkbox in the default via 
settings dialog checked.
While interactively routing a PCB I noticed that the automatically placed 
vias did not get tented (and the forementioned checkbox is still checked)
I do not want to end up with a board that has some vias tented and some 
not, and the global edit on the complete board afterwards is too easiliy 
forgotten.

I'm sure I'm missing something obvious, but haven't a clue
Please help me out, guys..


There are two ways to force tenting on vias - or at least there are two 
places to control the solder mask expansion.  The via has a tenting 
attribute and there is a design rule that controls solder mask 
expansion.  I have no idea which has precedence, I would hope the tenting 
attribute of the via.  However you may want to check, and play with, the 
Manufacturing-Solder Mask expansion rule.  If you make the rule expansion 
ridiculously big do the auto-placed vias follow the silly expansion?
I just did.
They (the autoplaced vias) did, too Seems the rule takes precedence 
over the default setting.
Only when the mfg rule specifically targets vias it has any effect, a rule 
specifying expansion for just surface and thru-hole pads does not change 
the expansion for the vias

Before we had the tenting attribute you had to apply a large enough 
negative expansion to force tenting.

The checkbox being tented but the actual via being untented does sound 
very odd - unless there is a conflict between the rules and the tent 
attribute.  Are the auto-placed vias the same dimensions as the manual 
placed vias?
Yep.
 Are they both vias?
Again, yep.

The manual ones aren't free pads are they? (Just asking some possibly 
silly questions.)
Hey, everyone stands the chance to overlook the obvious...

What happens if you save as ASCII and then re-load?  What does the ASCII 
file show for a tented and untented via?  The ASCII records are not hard 
to read.
AhemI would not say not hard to read, just not hard to understand..;)

The ASCII file states a neat tenting=true for the tented vias; for the 
non-tented vias there is no such  statement. I would expect 
'tenting=false', but its completely missing

Reloading the ASCII file does not solve the problem.
Further probing reveals no solutions but yet another mystery: the via 
annular rings are calculated different from pad annular rings... I've seen 
this one before, but still have no clues.

To top it all off: I'm running a fresh P99SE/sp6 installation on a brand 
new computer under a fresh installed W2kPro/sp4, all files on local disk.

I just about had it with P99SE.

Leo Potjewijd
hardware designer
Integrated Engineering B.V.
[EMAIL PROTECTED]
+31 20 4620700


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Re: [PEDA] Vias do not tent when expected

2004-03-04 Thread Dennis Saputelli
hi Leo

i can't reproduce your problem, please see if i did it right

i set via default paramter to tent

i set a design rule to a big expansion to make it obvious
note: i used via specification in design rule to apply only
to the diameter and hole size of the defualt via type

i then placed some vias nad they were tented
on an individual vias i unchecked 'tenting'
and the big expansion showed up

this is all as expected

did i miss something ?

Dennis Saputelli


Leo Potjewijd wrote:
 
 At 03-03-2004 23:35, Ian Wilson wrote:
 On 12:28 AM 4/03/2004, Leo Potjewijd said:
 Hi.
 
 I just discovered something strange:
 
 I like my vias tented so I keep the tenting checkbox in the default via
 settings dialog checked.
 While interactively routing a PCB I noticed that the automatically placed
 vias did not get tented (and the forementioned checkbox is still checked)
 I do not want to end up with a board that has some vias tented and some
 not, and the global edit on the complete board afterwards is too easiliy
 forgotten.
 
 I'm sure I'm missing something obvious, but haven't a clue
 Please help me out, guys..
 
 
 There are two ways to force tenting on vias - or at least there are two
 places to control the solder mask expansion.  The via has a tenting
 attribute and there is a design rule that controls solder mask
 expansion.  I have no idea which has precedence, I would hope the tenting
 attribute of the via.  However you may want to check, and play with, the
 Manufacturing-Solder Mask expansion rule.  If you make the rule expansion
 ridiculously big do the auto-placed vias follow the silly expansion?
 
 I just did.
 They (the autoplaced vias) did, too Seems the rule takes precedence
 over the default setting.
 Only when the mfg rule specifically targets vias it has any effect, a rule
 specifying expansion for just surface and thru-hole pads does not change
 the expansion for the vias
 
 Before we had the tenting attribute you had to apply a large enough
 negative expansion to force tenting.
 
 The checkbox being tented but the actual via being untented does sound
 very odd - unless there is a conflict between the rules and the tent
 attribute.  Are the auto-placed vias the same dimensions as the manual
 placed vias?
 Yep.
   Are they both vias?
 Again, yep.
 
 The manual ones aren't free pads are they? (Just asking some possibly
 silly questions.)
 Hey, everyone stands the chance to overlook the obvious...
 
 What happens if you save as ASCII and then re-load?  What does the ASCII
 file show for a tented and untented via?  The ASCII records are not hard
 to read.
 AhemI would not say not hard to read, just not hard to understand..;)
 
 The ASCII file states a neat tenting=true for the tented vias; for the
 non-tented vias there is no such  statement. I would expect
 'tenting=false', but its completely missing
 
 Reloading the ASCII file does not solve the problem.
 Further probing reveals no solutions but yet another mystery: the via
 annular rings are calculated different from pad annular rings... I've seen
 this one before, but still have no clues.
 
 To top it all off: I'm running a fresh P99SE/sp6 installation on a brand
 new computer under a fresh installed W2kPro/sp4, all files on local disk.
 
 I just about had it with P99SE.
 
 Leo Potjewijd
 hardware designer
 Integrated Engineering B.V.
 
 [EMAIL PROTECTED]
 +31 20 4620700

-- 
___
Integrated Controls, Inc.   Tel: 415-647-0480  EXT 107 
2851 21st StreetFax: 415-647-3003
San Francisco, CA 94110 www.integratedcontrolsinc.com



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Re: [PEDA] Vias do not tent when expected

2004-03-04 Thread Dennis Saputelli

see my earlier response on this

the via chekcbox takes precedence
which i think is logical since you are at the most
specific level

only by having this ability can you easily make exceptions to the design
rule

without a NO DRC i for one would hate to wade through 
a DRC about this exception, but i see your point
that there may be stuff going on without one's specific
awareness

i always thought that soldermask expansion 
belonged better as a property of the pad or via than as a design rule
but at this point,  whatever

re the default primitive settings as in this example

there is one more point that may need clarification and which
may be at the root of the original post

the 'default' setting applied in Tool Prefs Defaults
ONLY applies when using the Place Via command

if instead you are manually routing a board
and the * key when changing layers
then the via in the Via routing style is used
and it does not carry the tenting attribute
even if it matches the size  hole of the default via

Dennis Saputelli


Abd ulRahman Lomax wrote:
 
 At 07:34 AM 3/4/2004, Leo Potjewijd wrote:
 
 I like my vias tented so I keep the tenting checkbox in the default via
 settings dialog checked.
 While interactively routing a PCB I noticed that the automatically
 placed vias did not get tented (and the forementioned checkbox is still
 checked)
 
 This discussion has gone back and forth a few times, yet some basic facts
 about the situation I found less than clear. There was an ambiguity about
 what was written. The aforementioned checkbox is the checkbox in the
 default via settings dialog. That is a setting which will control the
 configuration of vias manually placed while that setting is active. It does
 not affect vias that are already placed, nor will it necessarily affect
 what the autorouter places. (You might expect it to, but Protel is put
 together from various programs that do not always function together with
 complete rationality. The 99SE autorouter, in particular, is its own
 creature and I'm not surprised to find that it does not respect in any way
 the default settings, just as the default settings may be altered
 whenever you edit a primitive as it is being placed. The default settings
 dialog is a convenience of occasional use, not an absolute control.
 
 What I'm saying is that if the autorouter places vias which do not have the
 tenting checkbox checked, it is no big surprise once one is familiar with
 how 99SE works.
 
 Historically, tenting was controlled only by design rule, the tenting
 attribute was one of the latest things added in the Protel 99 release, as I
 recall. It's a convenience. It's not particularly one that we requested,
 since using design rules to control tenting was already quite sufficient.
 
 If there is a conflict between a design rule and the tenting checkbox, I'd
 place my bets on the design rule, given the history of the program. Which
 one is paramount? I don't know, and I'm not particularly motivated at the
 moment to go and test. I never check that tenting checkbox, precisely
 because I don't know the answer to the question. I do know that if the
 checkbox is unchecked and the design rule says tent, it will be tented.
 That's enough for me.
 
 Because the design rules are explicit and their scope can be readily
 determined (this gets even better in DXP), it is better design practice to
 control tenting through design rule than through a primitive attribute
 manually (or supposedly by default) assigned to each via. If somehow that
 checkbox got unchecked, how would you notice it?
 
 Suppose you have vias of a certain size and you want to tent some and not
 others? The checkbox does make a way for you to do this, but there is a
 better way, and that is to convert the vias to pads, give the pads a
 distinctive name (say TENTED for the ones you want tented), and create a
 pad-scope design rule for Free-TENTED.
 
 Vias are basically free pads with the restriction that they are only round
 and do not have names. If you want to distinguish some of these vias from
 others, it is better to select them and convert them to free pads (with
 Tools/Convert); then -- they will still be selected -- you can globally
 edit them to give them a distinguishing name.
 
 I do not want to end up with a board that has some vias tented and some
 not, and the global edit on the complete board afterwards is too easiliy
 forgotten.
 
 Yes. Precisely. That's why the design rule approach is better.
 
 They (the autoplaced vias) did, too Seems the rule takes precedence
 over the default setting.
 
 The basic error here is in assuming that the default settings. I can easily
 understand why one would make the assumption. *The default settings are a
 convenience to speed up manual design, they don't control anything.*
 
 What I don't know, it's an interesting question, is what happens if a
 design rule for tenting is in conflict with the checkbox on an individual
 via. I dislike ambiguities like 

[PEDA] Vias do not tent when expected

2004-03-03 Thread Leo Potjewijd
Hi.

I just discovered something strange:

I like my vias tented so I keep the tenting checkbox in the default via 
settings dialog checked.
While interactively routing a PCB I noticed that the automatically placed 
vias did not get tented (and the forementioned checkbox is still checked)
I do not want to end up with a board that has some vias tented and some 
not, and the global edit on the complete board afterwards is too easiliy 
forgotten.

I'm sure I'm missing something obvious, but haven't a clue
Please help me out, guys..
Leo Potjewijd
hardware designer
Integrated Engineering B.V.
[EMAIL PROTECTED]
+31 20 4620700


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Re: [PEDA] Vias do not tent when expected

2004-03-03 Thread Leo Potjewijd
At 03-03-04 22:24, BROCK RUSSELL wrote:
Probably the current default for vias is not  set for tenting.

Check in Tools/Preferences/Defaults for the via property settings.

Brock Russell
Sorry Brock,

just checked and is _is_ set for tenting
Manually' placed vias tent, but auto-placed vias don't.
Happens on two different systems (same ddb though).
Leo 



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Re: [PEDA] Vias do not tent when expected

2004-03-03 Thread Ian Wilson
On 12:28 AM 4/03/2004, Leo Potjewijd said:
Hi.

I just discovered something strange:

I like my vias tented so I keep the tenting checkbox in the default via 
settings dialog checked.
While interactively routing a PCB I noticed that the automatically placed 
vias did not get tented (and the forementioned checkbox is still checked)
I do not want to end up with a board that has some vias tented and some 
not, and the global edit on the complete board afterwards is too easiliy 
forgotten.

I'm sure I'm missing something obvious, but haven't a clue
Please help me out, guys..


There are two ways to force tenting on vias - or at least there are two 
places to control the solder mask expansion.  The via has a tenting 
attribute and there is a design rule that controls solder mask 
expansion.  I have no idea which has precedence, I would hope the tenting 
attribute of the via.  However you may want to check, and play with, the 
Manufacturing-Solder Mask expansion rule.  If you make the rule expansion 
ridiculously big do the auto-placed vias follow the silly expansion?

Before we had the tenting attribute you had to apply a large enough 
negative expansion to force tenting.

The checkbox being tented but the actual via being untented does sound very 
odd - unless there is a conflict between the rules and the tent 
attribute.  Are the auto-placed vias the same dimensions as the manual 
placed vias?  Are they both vias?  The manual ones aren't free pads are 
they? (Just asking some possibly silly questions.)

What happens if you save as ASCII and then re-load?  What does the ASCII 
file show for a tented and untented via?  The ASCII records are not hard to 
read.

Not sure I have too many other ideas.

Bye for now,
Ian


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Re: [PEDA] Vias do not tent when expected

2004-03-03 Thread Dennis Saputelli
in 99SE
the via tenting attribute (and/or the override)
will take precendence over a design rule expansion amount

as it should IMO

i have never seen one be untented mysteriously, but maybe i never
noticed it

Dennis Saputelli


Ian Wilson wrote:
 
 On 12:28 AM 4/03/2004, Leo Potjewijd said:
 Hi.
 
 I just discovered something strange:
 
 I like my vias tented so I keep the tenting checkbox in the default via
 settings dialog checked.
 While interactively routing a PCB I noticed that the automatically placed
 vias did not get tented (and the forementioned checkbox is still checked)
 I do not want to end up with a board that has some vias tented and some
 not, and the global edit on the complete board afterwards is too easiliy
 forgotten.
 
 I'm sure I'm missing something obvious, but haven't a clue
 Please help me out, guys..
 
 There are two ways to force tenting on vias - or at least there are two
 places to control the solder mask expansion.  The via has a tenting
 attribute and there is a design rule that controls solder mask
 expansion.  I have no idea which has precedence, I would hope the tenting
 attribute of the via.  However you may want to check, and play with, the
 Manufacturing-Solder Mask expansion rule.  If you make the rule expansion
 ridiculously big do the auto-placed vias follow the silly expansion?
 
 Before we had the tenting attribute you had to apply a large enough
 negative expansion to force tenting.
 
 The checkbox being tented but the actual via being untented does sound very
 odd - unless there is a conflict between the rules and the tent
 attribute.  Are the auto-placed vias the same dimensions as the manual
 placed vias?  Are they both vias?  The manual ones aren't free pads are
 they? (Just asking some possibly silly questions.)
 
 What happens if you save as ASCII and then re-load?  What does the ASCII
 file show for a tented and untented via?  The ASCII records are not hard to
 read.
 
 Not sure I have too many other ideas.
 
 Bye for now,
 Ian
 

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