geda:pcb-quick_reference
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| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
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geda:pcb-quick_reference [2015/07/30 05:58] vzh Added info proposed by Erich Heinzle |
geda:pcb-quick_reference [2016/02/10 17:50] ptay [Examples] added three more examples |
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| ===== PCB Units ===== | ===== PCB Units ===== | ||
| PCB handles metric and imperial units in the following way: | PCB handles metric and imperial units in the following way: | ||
| - | * The base Imperial unit is the "centimil", or 1/100 of a thousandth, or 1/10,000 inch, or 0.00001 inch. | + | * The base Imperial unit is the "centimil", or 1/100 of a thousandth, or 1/100,000 inch, or 0.00001 inch. |
| * Allowable imperial value range: "0.04" (0.0000004 inches) to approx. "78740000" (about 78-3/4") | * Allowable imperial value range: "0.04" (0.0000004 inches) to approx. "78740000" (about 78-3/4") | ||
| * The base Metric unit is 1nm (one nanometer). PCB parses in metric if the number has a "mm" behind it. | * The base Metric unit is 1nm (one nanometer). PCB parses in metric if the number has a "mm" behind it. | ||
| Line 192: | Line 192: | ||
| * **''%%Pad[-24606 14760 -19538 14760 1181 2000 3181 "" "16" "square"]%%''** | * **''%%Pad[-24606 14760 -19538 14760 1181 2000 3181 "" "16" "square"]%%''** | ||
| * **''%%Pad[-14760 19538 -14760 24606 1181 2000 3181 "" "17" "square,edge2"]%%''** | * **''%%Pad[-14760 19538 -14760 24606 1181 2000 3181 "" "17" "square,edge2"]%%''** | ||
| + | * **''%%Pad[-240.00mil 0.0000 -80.00mil 0.0000 40.00mil 20.00mil 46.00mil "2" "2" "onsolder,square"]%%''** | ||
| + | * **''%%Pad[80.00mil 0.0000 240.00mil 0.0000 40.00mil 20.00mil 46.00mil "1" "1" "onsolder,square,edge2"]%%''** | ||
| * **''%%Pin[0 0 12000 2000 12500 6400 "" "1" 0×00000001]%%''** | * **''%%Pin[0 0 12000 2000 12500 6400 "" "1" 0×00000001]%%''** | ||
| + | * **''%%Pin[0 0 11500 11800 35000 12500 "" "1" 0x08]%%''** <-- unplated / nonplated hole | ||
| * **''%%ElementArc [0 0 6800 6800 0 360 1000]%%''** | * **''%%ElementArc [0 0 6800 6800 0 360 1000]%%''** | ||
| * **''%%ElementLine [-26696 -26696 26696 -26696 1000]%%''** | * **''%%ElementLine [-26696 -26696 26696 -26696 1000]%%''** | ||
geda/pcb-quick_reference.txt · Last modified: 2016/02/18 13:04 by ptay
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