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# author: Jelle de Jong <jelledejong@powercraft.nl>
# dist-license: GPLv3
# use-license: unlimited
# 22:00-00:00=2:00 hours it took to calculate the pad values
# 11:00-12:00=1:00 hours it took to calculate the silkscreen values
#Element[ SFlags "Desc" "Name" "Value" MX MY TX TY TDir TScale TSFlags ]
Element [ "" "" "" "" 1000 1000 0 0 0 100 "" ]
(
Attribute("description" "SOIC18 (MCP2515-I/SO)")
Attribute("author" "Jelle de Jong <jelledejong@powercraft.nl>")
Attribute("copyright" "Copyright (C) 2009 by Jelle de Jong, PowerCraft Technology")
Attribute("use-license" "unlimited")
Attribute("dist-license" "GNU General Public License v3")
Attribute("documentation" "http://ww1.microchip.com/downloads/en/DeviceDoc/21801e.pdf")
# Pad [ rX1 rY1 rX2 rY2 Thickness Clearance Mask "Name" "Number" SFlags ]
Pad [ -20000 -14842 -20000 -20748 2480 3001 2728 "" "18" "square" ]
Pad [ -15000 -14842 -15000 -20748 2480 3001 2728 "" "17" "square" ]
Pad [ -10000 -14842 -10000 -20748 2480 3001 2728 "" "16" "square" ]
Pad [ -5000 -14842 -5000 -20748 2480 3001 2728 "" "15" "square" ]
Pad [ 0 -14842 0 -20748 2480 3001 2728 "" "14" "square" ]
Pad [ 5000 -14842 5000 -20748 2480 3001 2728 "" "13" "square" ]
Pad [ 10000 -14842 10000 -20748 2480 3001 2728 "" "12" "square" ]
Pad [ 15000 -14842 15000 -20748 2480 3001 2728 "" "11" "square" ]
Pad [ 20000 -14842 20000 -20748 2480 3001 2728 "" "10" "square" ]
Pad [ -20000 14842 -20000 20748 2480 3001 2728 "" "1" "square" ]
Pad [ -15000 14842 -15000 20748 2480 3001 2728 "" "2" "square" ]
Pad [ -10000 14842 -10000 20748 2480 3001 2728 "" "3" "square" ]
Pad [ -5000 14842 -5000 20748 2480 3001 2728 "" "4" "square" ]
Pad [ 0 14842 0 20748 2480 3001 2728 "" "5" "square" ]
Pad [ 5000 14842 5000 20748 2480 3001 2728 "" "6" "square" ]
Pad [ 10000 14842 10000 20748 2480 3001 2728 "" "7" "square" ]
Pad [ 15000 14842 15000 20748 2480 3001 2728 "" "8" "square" ]
Pad [ 20000 14842 20000 20748 2480 3001 2728 "" "9" "square" ]
# ElementLine [ rX1 rY1 rX2 rY2 Thickness ]
# ElementLine [ -22736 -11083 22736 -11083 1000 ]
ElementLine [ 22736 -11083 22736 11083 1000 ]
# ElementLine [ 22736 11083 -22736 11083 1000 ]
# ElementLine [ -22736 11083 -22736 -11083 1000 ]
ElementLine [ -22736 -11083 -2500 -11083 1000 ]
ElementLine [ 2500 -11083 22736 -11083 1000 ]
ElementLine [ 22736 11083 2500 11083 1000 ]
# ElementLine [ -2500 11083 -22736 11083 1000 ]
ElementLine [ -2500 11083 -20236 11083 1000 ]
ElementLine [ -22736 8582 -22736 -11083 1000 ]
ElementLine [ -22736 8582 -20236 11083 1000 ]
# ElementLine [ -20236 8582 -20236 8582 1000 ]
)
# mm to 1000st mill is
# echo "scale=5; ((X)*10/2.54)*1000" | bc
# -----
# reverse engineering footprint data from several sources
# E = 10.30
# E1 = 7.50
# center of pad will be:
# echo "scale=5; (10.30 - 7.50) / 2" | bc
# 1.40000
# echo "scale=5; 7.50 / 2" | bc
# 3.75000
# echo "scale=5; 3.750 + 1.40" | bc
# 5.150 mm up from center of part
# pad width:
# 0.63 mm
# pad length:
# echo "scale=5; (9.270 - 5.010) / 2" | bc
# 2.13000
# -----
# Thickness
# 0.63 mm
# echo "scale=5; (0.63*10/2.54)*1000" | bc
# 2480.31000
# Mask
# 10%
# echo "scale=5; 0.63 * 1.10" | bc
# 0.6930
# echo "scale=5; (0.6930*10/2.54)*1000" | bc
# 2728.34000
# Clearance
# 10%
# echo "scale=5; 0.6930 * 1.10" | bc
# 0.76230
# echo "scale=5; (0.76230*10/2.54)*1000" | bc
# 3001.18000
# ----- pin 14
# X1 and X2
# X1 = 0
# X2 = 0
# Y1:
# lower edge of pad
# echo "scale=5; 5.150 - (2.130 / 2)" | bc
# 4.08500
# echo "scale=5; 0.63 / 2" | bc
# 0.31500
# echo "scale=5; 4.0850 - 0.31500" | bc
# 3.77000
# echo "scale=5; (3.770*10/2.54)*1000" | bc
# - 14842.51000
# Y2:
# echo "scale=5; 2.130 - 0.630" | bc
# 1.50000
# echo "scale=5; 3.770 + 1.50" | bc
# 5.270
# echo "scale=5; (5.270*10/2.54)*1000" | bc
# - 20748.03000
# ----- pin 13
# pitch = 1.27 mm
# X1 and X2
# echo "scale=5; (1.270*10/2.54)*1000" | bc
# + 5000.00000
# ----- uper left corner silkscreen
# X1
# body length
# 11.55 mm
# echo "scale=5; 11.55 / 2" | bc
# 5.77500
# echo "scale=5; (5.77500*10/2.54)*1000" | bc
# - 22736.22000
# Y1
# lower edge of pad - pitch - half of thinkness silkscreen
# echo "scale=5; 4.08500 - 1.27" | bc
# 2.81500
# echo "scale=5; (2.8150*10/2.54)*1000" | bc
# - 11082.67000
# ----- pin one indication corner
# half of the pitch
# X1 and X2
# echo "scale=5; 1.270 / 2" | bc
# 0.63500
# echo "scale=5; 5.7750 - 0.6350" | bc
# 5.1400
# echo "scale=5; ((5.1400)*10/2.54)*1000" | bc
# 20236.22000
# Y1
# 2.81500
# echo "scale=5; 1.270 / 2" | bc
# 0.63500
# echo "scale=5; 2.8150 - 0.6350" | bc
# 2.1800
# echo "scale=5; ((2.180)*10/2.54)*1000" | bc
# 8582.67000