Polygon pours in altium

[Preethi Yogaraj]

Hi,

I am designing a 2 layer board and am trying to have a ground pour on the bottom layer. But once I define the outline, the polygon is supposed to get filled which doesent happen. All that I am able to see is just the outline that I have defined.

Am unable to understand the reason why this could be so. Can someone help me with this please?

[T3sl4co1l]

Repour it, or set automatic repours (Tools / PCB Preferences..).

Tim

[gxti]

Most likely, you have checked the 'remove dead copper' option in the pour, and there's no connection to that net on the bottom layer. Try placing a via.

[free_electron]

what version ?
as of 14 .xx there is an additional checkbox 'ispoured'  set that to true to run the pour.

they did this because on huge boards with many polygons it was a pain when moving a track to have to wait for all pours to re-occur.
at the same time they introduced the polygon pour manager that lets you set the order of pours. this can be important lets say you gat a small pour that is vcc with a bigger pour called gnd. in the past you had to draw the shapes such that they did not overlap otherwise there was the risk that gnd got poured before vcc and there was no room.

now you can just define the order. i want this one drawn first, then that one so the previous one will be clipped by the software, then that one so now the two poured ones are clipped etc ...

another nicety of the 'ispoured' flag is that you don't have to wait for redraw while will routing. neither do you have to set polygins to draft so you can see xray through the board.

[T3sl4co1l]

Not sure about isPoured, but shelving and the polygon manager have both been around for a very long time.

Tim

[David_AVD]

This can also be due to you not assigning a net to the polygon at all, or there not being any of the specified net objects within the polygon area.

[dboyer]

Also, I think you'd get the same behavior if you turn polygons to "Draft" view in the layer manager (L, Show/Hide tab).