Air wires missing on board - all present and passed on "consistent" schematic

On 10/19/2012 11:34 AM, ken endello wrote:

I came to Eagle having attempted Kicad and found a far greater ease of use with Eagle. I have alread made a successful two sided board.

 

Now I'm having a problem that I can't solve:

 

I have carefully edited my schematic and am left with just a few trivial warnings in ERC.  Specifially I have a 12 pin connector to the outside world and all schematic connections to it are correct and consistent in "name" all along their lengths (I warrant there are no mis-connects). ERC tells me "Board and schematic are consistent". Now, I go to the board layout and on my 12 pin connector five air-wires are missing: a ground, a 12V power line and three lines that go directly to I/O ports on my microcontroller.

 

I checked the pins on the connector and all are labelled "passive".

 

Please tell me what obvious mistake I'm making?

 

Ken

 

Hi ken,

This usually happens when the part is on a different grid spacing and

the net does not snap to the end.

It only looks connected.

To check this move the connector and see if all the connections go with

it. It is also important to use the NET command and not the Wire command.

-D

I have the solution - I used the "move" function to shift the part and saw that, despite my warranty, four of five connections weren't made. This was despite my being very liberal with the "junction" blobs and despite me making sure the  "$name" was consistent across the supposed junctions. I  "made" the junctions by deleting the part, positioning a duplicate and "ramming" it onto the open wires - once I clicked to fix the part, blobs appeared where the connections had succeeded - which was all of them.

Now, there was one connection that was still missing on the board which moved as I moved the part - this looks like a software bug. I solved that one too, just by making a different connection to the pin (a nonsensical one), deleting all but a short spur of conductior still connected to the pin, and then reconnecting to that.

Now I have all my airwires and I am going to have a beer.

Thanks for looking - I am sure I shall be back.

Ken

Thanks D - I just got your advice - sounds very probabble because I didn't pay great attention to the grid and was quite promiscuous with the grid size control as I jiggled stuff around. I will take what you say into advisement.

Thanks

Ken