add custom footprint for capacitor
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#!/usr/bin/env ruby
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# encoding: utf-8
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# written for ruby 2.1.0
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# generate a footprint (see script for more information)
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require_relative 'element'
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# global dimensions
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UNIT = "mm"
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SILKSCREEN = 0.2
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SOLDERMASK = 0.1
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# class properties, for radial leads and perpendicular parts
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classes = []
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classes << {:class => "least", :hole => 0.15, :ring => 0.3, :clearance => 0.5}
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classes << {:class => "nominal", :hole => 0.2, :ring => 0.35, :clearance => 0.7}
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classes << {:class => "maximum", :hole => 0.25, :ring => 0.5, :clearance => 1.0}
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# size code dimensions
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D = 6.3
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p = 2.5
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d = 0.5
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classes.each do |cla|
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base = File.basename(__FILE__,".rb")
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name = "#{base}_#{cla[:class][0,1].upcase}.fp"
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File.open(name,"w") do |fp|
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# put some information
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fp.puts "# footprint for an aluminum electronlytic capacitor"
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fp.puts "# manufacturer: Kemet"
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fp.puts "# series: ESK"
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fp.puts "# size code: E3"
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fp.puts "# datasheet: http://www.kemet.com/docfinder?Partnumber=ESK477M6R3AE3AA"
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fp.puts "# class: #{cla[:class]}"
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# define element
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# center is pin 3
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fp.puts element("Element",["","capacitor","","Kemet ESK E3 #{cla[:class]}",:"0",:"0",:"0",:"0",:"0",:"100",""])
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fp.puts "("
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# outline
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#ElementArc [X Y Width Height StartAngle DeltaAngle Thickness]
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fp.puts element("ElementArc",[0,0,D/2,D/2,:"0",:"360",SILKSCREEN])
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#ElementLine [X1 Y1 X2 Y2 Thickness]
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fp.puts element("ElementLine",[-D/2-1,0,-D/2-0.5,0,SILKSCREEN])
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fp.puts element("ElementLine",[-D/2-0.75,-0.25,-D/2-0.75,0.25,SILKSCREEN])
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fp.puts element("ElementLine",[D/2+1,0,D/2+0.5,0,SILKSCREEN])
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# pins
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# Pin [rX rY Thickness Clearance Mask Drill "Name" "Number" SFlags]
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fp.puts element("Pin",[-p/2,0,d+cla[:hole]+cla[:ring],d+cla[:hole]+cla[:clearance],d+cla[:hole]+cla[:ring]+SOLDERMASK,d+cla[:hole],"+","1","square"])
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fp.puts element("Pin",[p/2,0,d+cla[:hole]+cla[:ring],d+cla[:hole]+cla[:clearance],d+cla[:hole]+cla[:ring]+SOLDERMASK,d+cla[:hole],"-","2",""])
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# end of element
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fp.puts ")"
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end
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end
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# footprint for an aluminum electronlytic capacitor
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# manufacturer: Kemet
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# series: ESK
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# size code: E3
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# datasheet: http://www.kemet.com/docfinder?Partnumber=ESK477M6R3AE3AA
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# class: least
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Element["" "capacitor" "" "Kemet ESK E3 least" 0 0 0 0 0 100 ""]
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(
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ElementArc[0.0mm 0.0mm 3.15mm 3.15mm 0 360 0.2mm]
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ElementLine[-4.15mm 0.0mm -3.65mm 0.0mm 0.2mm]
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ElementLine[-3.9mm -0.25mm -3.9mm 0.25mm 0.2mm]
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ElementLine[4.15mm 0.0mm 3.65mm 0.0mm 0.2mm]
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Pin[-1.25mm 0.0mm 0.95mm 1.15mm 1.05mm 0.65mm "+" "1" "square"]
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Pin[1.25mm 0.0mm 0.95mm 1.15mm 1.05mm 0.65mm "-" "2" ""]
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)
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# footprint for an aluminum electronlytic capacitor
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# manufacturer: Kemet
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# series: ESK
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# size code: E3
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# datasheet: http://www.kemet.com/docfinder?Partnumber=ESK477M6R3AE3AA
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# class: maximum
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Element["" "capacitor" "" "Kemet ESK E3 maximum" 0 0 0 0 0 100 ""]
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(
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ElementArc[0.0mm 0.0mm 3.15mm 3.15mm 0 360 0.2mm]
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ElementLine[-4.15mm 0.0mm -3.65mm 0.0mm 0.2mm]
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ElementLine[-3.9mm -0.25mm -3.9mm 0.25mm 0.2mm]
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ElementLine[4.15mm 0.0mm 3.65mm 0.0mm 0.2mm]
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Pin[-1.25mm 0.0mm 1.25mm 1.75mm 1.35mm 0.75mm "+" "1" "square"]
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Pin[1.25mm 0.0mm 1.25mm 1.75mm 1.35mm 0.75mm "-" "2" ""]
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)
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# footprint for an aluminum electronlytic capacitor
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# manufacturer: Kemet
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# series: ESK
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# size code: E3
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# datasheet: http://www.kemet.com/docfinder?Partnumber=ESK477M6R3AE3AA
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# class: nominal
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Element["" "capacitor" "" "Kemet ESK E3 nominal" 0 0 0 0 0 100 ""]
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(
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ElementArc[0.0mm 0.0mm 3.15mm 3.15mm 0 360 0.2mm]
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ElementLine[-4.15mm 0.0mm -3.65mm 0.0mm 0.2mm]
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ElementLine[-3.9mm -0.25mm -3.9mm 0.25mm 0.2mm]
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ElementLine[4.15mm 0.0mm 3.65mm 0.0mm 0.2mm]
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Pin[-1.25mm 0.0mm 1.05mm 1.4mm 1.15mm 0.7mm "+" "1" "square"]
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Pin[1.25mm 0.0mm 1.05mm 1.4mm 1.15mm 0.7mm "-" "2" ""]
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)
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@ -46,7 +46,7 @@ datasheet=http://www.kemet.com/docfinder?Partnumber=ESK477M6R3AE3AA
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T 0 1900 8 10 0 0 0 0 1
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farnell-id=2068936
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T 0 2500 8 10 0 0 0 0 1
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footprint=RCY250P
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footprint=capacitor_470uF-electrolytic_kemet_ESK-E3_N.fp
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T 0 2100 8 10 0 0 0 0 1
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digikey-id=399-6611-ND
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T 0 2300 8 10 0 0 0 0 1
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