We will now add the two pads at coordinates (-31,0) and (31,0).Clcik on Layout -> Pins. Click on Tools -> Padstack -> Refresh Padstack. Point to the directory where you have saved your own created padstack. Do do this- Click on Setup -> User Preferences -> -> In Categories, select Design Paths.click on the triple dotted rectangle in front of padpath.Click on New ( Insert) Button. Next, Allegro should have some way to know, if it can use the padstack we created in the last page. Also reduce the width and height to some resonable value, say, 100 respectively. In the dwawing extents - make left X and lower Y to, say -1000, -1000. We will save this symbol in directory C:/learnallegro/symbols/.īefore we start creating Symbols, we will have to do some preparation. Also browse to directory C:/learnallegro/symbols/. In the 'Drawing Type' Select Package Symbol. For this tutorial we will be creating the symbols for the 0603 resistor and the two pin Header.Ĭlick on Start -> Allegro SBP 15.2 -> PCB Editor -> Select Allegro PCB Design 610 ( PCB Design Expert) -> Click OK.This will open up the Allegro software. It is created from the datasheet of the components. Footprints or symbols are the electrical plus mechanical description of the component.
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