> On Mar 17, 2016, at 9:15 PM, Eric Smith <space...@gmail.com> wrote: > > On Thu, Mar 17, 2016 at 3:35 PM, Guy Sotomayor <g...@shiresoft.com> wrote: >> I’m planning on doing a 4 layer board so I can avoid having routing issues >> due to 3 different >> power supply voltages (yea, modern low voltage design meets 5v). I haven’t >> done a 4 layer >> design before, so I’m in for a bit of learning (mainly on how to “pour” the >> inner layers). > > In Eagle, you use the polygon tool, select the layer, and draw the > polygon for the entire board outline (or wherever you want the pour). > Then you use the "name" tool, select the polygon, and give it the name > of the net you want it connected to (e.g, GND). Once you've done > that, any time you do a ratsnest command, Eagle will recalculate the > polygon and connect all through-holes of that net to the polygon (with > thermals by default). It doesn't recalculate as you add or move > components, so it will look wrong until you give another ratsnest > command to recalculate it. > > While working on the layout, I find the display gets annoying with the > polygons shown. Rather than hiding those layers, you can type "ripup > @;" to remove the polygon routing until the next ratsnest command. I > do that because I often have a few signals going through the layers > that are otherwise mostly power planes, and I don't want to hide the > entire layers because I want to see those signals. > > Of course, this also works on the top and bottom side if you want > copper pour there.
Thanks. I think I have it mostly figured out. ;-) Still have to place all the caps. ;-) Then I can start to route everything. TTFN - Guy