Electronics > Eagle

Eagle Pro very slow with lots of copper pours

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mf_ibfeew:
use "set poly off" in the commandline.
than "ripup @;"
the next ratsnest works without polygone.

to see the polygone again: "set poly on"
followed with a ratsnest-command.

If you don't want to type the commands: create 3 menu-buttons for these commands. type:
MENU 'ripup @;' 'Poly ON: set poly on' 'Poly OFF: set poly off'  ENTER

ebastler:

--- Quote from: Faringdon on June 13, 2022, 08:52:38 pm ---Thanks, i have loads of pours......and whenever a component has a PTH pad on the bottom, and no trace to it on the bottom...i put a pour over it, so its more fixed if i have to desolder it.

--- End quote ---

I don't quite understand what you are doing there, but you might be misunderstanding (or abusing) the pour feature.

Do you mean that you use a local pour, set to the signal on the pad, to essentially make a larger pad? If so, I recommend against it. That's asking for trouble if you have to change the layout, e.g. move components around. If you really want larger pads, you should edit the component footprint.

But placing larger pads just to make the pads more robust during the testing & debugging phase seems a bit over the top for my taste. Plated-through, double-sided pads hold up quite well in my experience, even on PCBs from the typical low-cost suppliers. How often do you expect to unsolder the components?

Faringdon:

--- Quote ---se "set poly off" in the commandline.
than "ripup @;"
the next ratsnest works without polygone.

to see the polygone again: "set poly on"
followed with a ratsnest-command.

If you don't want to type the commands: create 3 menu-buttons for these commands. type:
MENU 'ripup @;' 'Poly ON: set poly on' 'Poly OFF: set poly off'  ENTER

--- End quote ---

Thankyou so much!....you are brilliant...utterly Brilliant !!!

....this will save so much time its not true...

I will come to other great points of others too....

Faringdon:
I must admit i went on too far, editing the PCB , then fond it was too slow...which of the following woudl you say contributes to slowness in an Eagle Pro 7.4.0 layout.?...

1....Lots of tracking in "free angle" (ie not 90 degree or 45 degree)
2...Lots of copper pours
3.....Lots of copper pours with multiple "sides"...ie made of  freely drawn "free angle" wire width.

jpanhalt:
I have not noticed any particular slowness by having non-45 degree angles for traces or irregular polygon pours.

Lots of pours will slow things down and particularly if the wire width is very small, e.g., 0.

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