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Date: Wed, 23 May 2012 16:50:22 -0400
Message-Id: <201205232050.q4NKoM3Q000589@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: geda-user AT delorie DOT com
In-reply-to:
	<CALSZ9gqde8vwZ+xUzZXv_nmrzoyr1kHJSsgPO0-VUeXoY7MKiw AT mail DOT gmail DOT com>
	(message from Rob Butts on Wed, 23 May 2012 16:44:26 -0400)
Subject: Re: [geda-user] PCB Pad discrepancy
References: <CALSZ9gqde8vwZ+xUzZXv_nmrzoyr1kHJSsgPO0-VUeXoY7MKiw AT mail DOT gmail DOT com>
Reply-To: geda-user AT delorie DOT com


> I want to create a pad 1.25" x 0.24"
> 
> My pad statement is:
> 
> Pad[75000 25000 75000 126000 24000 2000 26000 "" "1" "square"]
> 
> When I do a cntrl-R over the pad it gives me a width = 240 mils and length
> = 641.38 mils
> 
> I have gone over the math 5 times now.  Does anyone see what I'm doing
> wrong?

http://www.brorson.com/gEDA/land_patterns_20070805.pdf

width = 240 mil
legnth = (1260-250) + 240 mil = 1250 mil

My pcb's (git head) report says:

PAD ID# 7;  Flags:"square,edge2"
FirstPoint(X,Y)  = (2125.00, 1225.00) mil; ID = 0.
SecondPoint(X,Y) = (2125.00, 2235.00) mil; ID = 0.
Width = 240.00 mil.  Length = 1250.00 mil.                <<<<<<<<<<<<<<<<<<
Clearance width in polygons = 10.00 mil.
Solder mask = 260.00 mil x 1270.00 mil (gap = 10.00 mil).
Name = "".
It is owned by SMD element 0603N
  as pin number 1 and is on the component
side of the board.