Can't delete layer

[Eldon Hiebert]

Hello all,

I had a board that was 6 layer. After some changes I have managed to make
the board route in 4-layers quite readily. Then I went to delete the layers
from the layer display. It let me delete layer 4, but not layer 5.

Obviously something is still using layer 5, but it is not displayed. Is
there some way to find anything on this layer? I have tried turning off all
layers except 5 and see what is displayed. Nothing is displayed in this
case. My board design rules makes no reference to layer 5 and the router
setup make no reference to layer 5 either.

Thanks for listening,
Eldon R. Hiebert

[Ing. J.M. Rafetseder]

Try: set used_layers all, enter & after that switch all layers on
r

[Eldon Hiebert]

I tried this solution yesterday and still cannot find the reason why I can't
delete the layer.



I should mention that this is V5.2.0 Professional. I need a solution for
this; otherwise, I cannot get the board out for manufacture with known
problems. Please help.



Thanks,

Eldon R. Hiebert

Post by Ing. J.M. Rafetseder
Try: set used_layers all, enter & after that switch all layers on
r

[Joern Paschedag]

Post by Eldon Hiebert
I tried this solution yesterday and still cannot find the reason why I can't
delete the layer.
I should mention that this is V5.2.0 Professional. I need a solution for
this; otherwise, I cannot get the board out for manufacture with known
problems. Please help.
Thanks,
Eldon R. Hiebert

Post by Ing. J.M. Rafetseder
Try: set used_layers all, enter & after that switch all layers on
r

Yeah, sems to be a little trouble with that. I try tests with a copy
only but don´t have a 6 layer at hand right now. Usually one can delete
a layer like "layer -x" where x = layer number, except if "layer is not
empty". But give a try as Mr. Rafetseder suggested:"set used_layers 1".
This should leave only a few layers and you can add the missing ones.
No good solution but maybe a work around.....AND maybe you should check
DRC /layers if your unwanted layer is still in the formula.

[Richard Hammerl]

Post by Eldon Hiebert
Hello all,
I had a board that was 6 layer. After some changes I have managed to make
the board route in 4-layers quite readily. Then I went to delete the layers
from the layer display. It let me delete layer 4, but not layer 5.
Obviously something is still using layer 5, but it is not displayed. Is
there some way to find anything on this layer? I have tried turning off all
layers except 5 and see what is displayed. Nothing is displayed in this
case. My board design rules makes no reference to layer 5 and the router
setup make no reference to layer 5 either.
Thanks for listening,
Eldon R. Hiebert

Did you try to display layer 5 only and then to use
GROUP and DELETE over the whole drawing area?

How does your layer setup in the Design Rules look like?

[Eldon Hiebert]

Post by Richard Hammerl

Post by Eldon Hiebert
Hello all,
I had a board that was 6 layer. After some changes I have managed to make
the board route in 4-layers quite readily. Then I went to delete the layers
from the layer display. It let me delete layer 4, but not layer 5.
Obviously something is still using layer 5, but it is not displayed. Is
there some way to find anything on this layer? I have tried turning off all
layers except 5 and see what is displayed. Nothing is displayed in this
case. My board design rules makes no reference to layer 5 and the router
setup make no reference to layer 5 either.
Thanks for listening,
Eldon R. Hiebert

Did you try to display layer 5 only and then to use
GROUP and DELETE over the whole drawing area?
How does your layer setup in the Design Rules look like?

Great idea. I did try turning only the layer 5 on and look for something,
anything on that layer, but it showed nothing.

The 6 layer setup was (1*2+3*4+5*16) and I reduced to 4-layers of
(1*2+3*16).

TIA,
Eldon.