How to do Copper Pour in Eagle?

Comments

• T Chap Posts: 4,249

  2010-04-06 01:58 edited 2010-04-06 01:58

  Just create a rectangle using polygon tool around the board, then type VSS or GND into the window to force the copper pour to become your GND. Then hit ratsnest. You may want to tweak the settings to adjust the spacing between the pour and the nearest traces, plus whether there are islands that are separate from the rest of the pour. Do the pour after you have routed. Doing a pour first affects the autorouter.
  
  ** Sorry, I left out that polygon tool is required to make the rectangle
  
  Post Edited (Todd Chapman) : 4/6/2010 4:22:05 PM GMT
• william chan Posts: 1,326

  2010-04-06 11:54 edited 2010-04-06 11:54

  Sorry,
  
  I am still not so clear on how to set the rect to become Gnd or to set the drain sizes.
  I tried to set the component name of the rect or the component value of the rect but it i could not click on the rect.
  
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• mctrivia Posts: 3,772

  2010-04-06 12:16 edited 2010-04-06 12:16

  you need to use the polygon tool. draw rectangle with wall thickness of the size you would like the thermals to be. renaming it to the same name as a net(like vss) will cause it to pore.
  
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• Timothy D. Swieter Posts: 1,613

  2010-04-06 13:44 edited 2010-04-06 13:44

  Second that - it is a polygon tool that must be used. Copper pours can be any shape. Copper pours can also use a hatch or pattern - it doesn't have to be solid copper. Steps:
  
  1. At the end of the board routing use Polygon to draw the shape around the area you want poured.
  2. use the name tool to change the name of the polygon to match the name of the net you want poured such as VSS or GND or VCC. The naming is the whole trick to the action.
  3. Hit ratsnest and you are there.
  
  EAGLE's help on polygon tool includes some tidbits on what the various parameters do for setting orphans or spacing.
  
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• william chan Posts: 1,326

  2010-04-06 22:27 edited 2010-04-06 22:27

  Thanks all, i got it now.
  What's the "spacing" setting used for?
  
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