Hi,
I am making a base for a toroid transformer and I am using an
element footprint as the basis for the design. I have used a spread sheet
to calculate the mounting holes base on 120 degree spacing. I have three
arcs between the tabs to define the outline between the tabs. Using the
information from footprint creation last updated by Stuart D. Brorson
01/29/2005 it looks like the arc starts at 0 degree = 9pm and goes ACW not
CW. I can live with that. Where I have a problem is starting the arc
between about 330 and 359 degrees. It seems to be quite erratic. I have
attached my footprint and a test footprint that I hope highlights the
problem so that I can be helped.
Regards Ian.
FOOTPRINT.
Element(0x0 "NanoCrystal Xf base" "" "" 0 0 -30 -80 0 100 0x0)
(
Pin(0 1104 142 200 162 170 "" "1" 0x0008)
Pin(956 -552 142 200 162 170 "" "2" 0x0008)
Pin(-956 -552 -55 200 162 170 "" "3" 0x0008)
Pin(0 1360 142 200 162 170 "" "4" 0x0008)
Pin(1178 -680 142 200 162 170 "" "5" 0x0008)
Pin(-1178 -680 142 200 162 170 "" "7" 0x0008)
Pin(0 1940 142 200 162 170 "" "7" 0x0008)
Pin(1680 -970 142 200 162 170 "" "8" 0x0008)
Pin(-1680 -970 142 200 162 170 "" "9" 0x0008)
ElementArc(0 0 1934 1934 0 360 5)
ElementArc(0 0 804 804 0 360 50)
ElementArc(0 0 1104 1104 0 360 5)
ElementArc(0 0 1360 1360 0 360 5)
ElementArc(0 0 2184 2184 0 360 5)
ElementArc(0 0 1660 1660 97 106 75)
ElementArc(0 0 1660 1660 217 106 50)
ElementArc(0 0 1660 1660 337 106 100)
ElementLine(236 2171 -236 2171 50)
ElementLine(1762 -1290 1998 -881 50)
ElementLine(-1998 -881 -1762 -1290 50)
ElementLine(236 2171 202 1648 50)
ElementLine(1762 -1290 1326 -999 50)
ElementLine(-1998 -881 -1528 -649 50)
ElementLine(-236 2171 -202 1648 50)
ElementLine(1998 -881 1528 -649 50)
ElementLine(-1762 -1290 -1326 -999 50)
ElementLine(166 1350 -166 1350 5)
ElementLine(1086 -818 1252 -531 5)
ElementLine(-1251 -531 -1086 -818 5)
)
TEST
Element(0x0 "Test" "" "" 0 0 -30 -80 0 100 0x0)
(
Pin(0 1104 142 200 162 170 "" "1" 0x0008)
Pin(956 -552 142 200 162 170 "" "2" 0x0008)
Pin(-956 -552 -55 200 162 170 "" "3" 0x0008)
Pin(0 1360 142 200 162 170 "" "4" 0x0008)
Pin(1178 -680 142 200 162 170 "" "5" 0x0008)
Pin(-1178 -680 142 200 162 170 "" "7" 0x0008)
Pin(0 1940 142 200 162 170 "" "7" 0x0008)
Pin(1680 -970 142 200 162 170 "" "8" 0x0008)
Pin(-1680 -970 142 200 162 170 "" "9" 0x0008)
ElementArc(0 0 1000 1000 0 45 150)
ElementArc(0 0 500 500 320 10 25)
ElementArc(0 0 600 600 330 20 50)
ElementArc(0 0 700 700 340 30 75)
ElementArc(0 0 800 800 350 40 100)
)
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