In our case, the parts were placed using the "Update PCB" process, the PCB
was fully sync'd to the schematic, and the schematic was correct. The real
key point is that in the layout, I could pull up the properties for the part
and see that the footprint was called a 1206 even though the actual
geometry/primitives were those of an 0603 footprint. Since each part has its
own instance in the layout, Protel thought the part was correct. The only
way this could be a manual error was if someone created a part called "1206"
that had the pads for an 0603, and then placed parts using this footprint. 

I don't think this was a manual error for two reasons.

1) All the above mentioned footprints have been static in our global library
for long before this PCB has been in existance.

2) I also found an second part (0805) that looked like an 0603. Its fairly
unlikely that someone made both an 0805 and a 1206 that looked like 0603s. 

Darcy



-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED]
Sent: December 23, 2004 11:42 AM
To: [email protected]
Subject: Re: [PEDA] Wrong geometry, right footprint name!


In a message dated 2004-12-23 12:19:13 PM Eastern Standard Time, 
[EMAIL PROTECTED] writes:


> 1) Anybody seen anything like this before? or can come up with an sequence
> of steps that may have caused this?
> 
> 2) Its going to take a long time to check every part in the design.
Anybody
> have any suggestions for finding further errors?
> 

Easy enough to do. Either load the part manually, or have it in the
schematic 
as 0603 and later change to 1206, and forget to check the box to update part

footprints.

I'd just reload the netlist, being sure to check the two boxes (and 
thereafter reselect the netlist file - they do it backwards). Then clean up
the 
resulting DRC errors, and you should be home.

Steve Hendrix
 
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