Non-Existent Keepout

I should have added some pictures yesterday.  Here they are:

1 - Top and bottom view.  The inductor is sitting on the bottom side,

underneath Q2.  The outlines of the top keepout in red and the bottom

keepout in blue are visible.

(I couldn't insert a 3rd image here.  It's called 1.png.)

2 - Top view only.  Top keepout is still visible, and is not valid.

3 - Bottom view only.  Inductor and bottom keepout are visible, and no top

keepout.

And just to be sure there weren't both top and bottom keepouts in the

library part, I deleted the "top" keepout (bottom keepout when the part is

mirrored to the bottom of the board), then moved the pads to make sure

there were no other hidden elements to the part.  The only elements of the

part are the 2 pads (each an SMD pad + some polygons to give the pad it's

odd shape) and the one keep out rectangle.

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

Attachments:

On 25/08/2016 12:26 p.m., Dave Wills wrote:

Hi,

 

I'm using a back-rev version of Eagle, 6.5.  I've designed a library part

for a non-standard inductor with an odd shape and height.  There are only 3

items in the library for this part: 2 pads and a top keepout layer.

 

I've placed all my components on the board, did an ERC and a DRC, and there

are no errors.  Then I routed the board OK.  I was just moving around some

component names so they aren't on top of vias when I noticed a keep out

area on the top of my board.  After scratching my head, I realized the keep

out is from the inductor, but the inductor is placed on the bottom of the

board.  I confirmed that the keepout on the bottom of the mirrored part is

there, and that if I move the inductor the top keep out moves along with

it.

 

There's a FET sitting on top of the top keep out, so obviously the keep out

isn't doing anything, especially since DRC didn't complain.

 

Any ideas what might be causing this?  I'm guessing this is a display

problem and not a design problem.

 

Thanks,

 

Dave

 

Hi Dave

You may not be seeing what you think you are seeing. Is it really a

tKeepout? It is a different size to the bottom keepout.

Try a couple of things:

Clear the DRC errors

Type ERRORS CLEAR into the command line in the board editor.

Did it disappear?

Turn off the tKeepout layer in the board editor.

Did it disappear?

In the library turn on all layers.

Is it there?

That's all I have right now.

If you have a paid version of v6.5 you should upgrade to the last

version 6.6  here ftp://ftp.cadsoft.de/eagle/program/

HTH

Warren

On 25.08.2016 18:14, Dave Wills wrote:

I should have added some pictures yesterday.  Here they are:

 

1 - Top and bottom view.  The inductor is sitting on the bottom side,

underneath Q2.  The outlines of the top keepout in red and the bottom

keepout in blue are visible.

 

(I couldn't insert a 3rd image here.  It's called 1.png.)

 

2 - Top view only.  Top keepout is still visible, and is not valid.

 

 

 

3 - Bottom view only.  Inductor and bottom keepout are visible, and no top

keepout.

 

 

 

And just to be sure there weren't both top and bottom keepouts in the

library part, I deleted the "top" keepout (bottom keepout when the part is

mirrored to the bottom of the board), then moved the pads to make sure

there were no other hidden elements to the part.  The only elements of the

part are the 2 pads (each an SMD pad + some polygons to give the pad it's

odd shape) and the one keep out rectangle.

 

This is a bit confusing to understand what you mean. If you say both

tkeepout and bkeepout are following the inductor when you move it, they

surely must have been drawn like that in the inductor library component?

t/bkeepout are independant layers, but they get swapped with the device

mirroring.

Open the ind package, make sure both t&bkeepout layers are enabled and

try to move one. They may have the same or similar color and fill

pattern when seen from the lib perspective.

On 25/08/16 17:14, Dave Wills wrote:

I should have added some pictures yesterday.  Here they are:

The pictures clarify what you say, but what would really be useful is a

copy of your library and board files.

Hi Warren, Morten and Rob,

Thanks for the replies.  I REALLY appreciate them.

OK, Warren's comments did it.  I have to blame this on every one of my

employee.  (Yes, singular is intended.)  Sorry, an inexperienced user's

brain lock.  Though I turned layers on and off many times in the .brd, I

didn't think of doing that in the .lbr.  DOH!

Thanks again for enlightening me, and I apologize for having wasted your

time.

Dave

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.