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No net selected!

Former Member

Hi all,

 

I'm having nightmares trying to add some components to my schematic. I can drop the component fine, but I can't connect a net to the pins. I've tried using wires and nets, which are lined up perfectly. Whenever I use the connect tool, I get the no net selected pop up. I have no idea what I'm doing wrong, but I find that if I use the move tool and click repeatedly on the component and drag and drop it over the nets/wires eventually a connector symbol appears and the pin is joined. However, when I move the component, the connection is in the middle of two wires. I've deleted the extra wire, and the connection bubble disappears, but the wire/net is still joined to the component's pin. (this is what it looks like before I delete the extra wire)

 

image

Does anyone have any idea of how to fix this, or have a workaround? My clicking method works intermittently, and needless to say it's really slowing me down. For the record, I'm using 7.2.0

 

Any help is appreciated.

 

 

Cheers,

John

Parents
  • 0

    Hi John,

     

    I hope you're doing well. First thing is to make sure you use the NET

    command, don't use WIRE. WIRE should only be used for artistic purposes.

    Hopefully a name change will one day reflect that.

     

    What GRID size are you using? On the schematic, you should always stick

    to a 0.1"(2.54mm) grid. If you deviate from that you'll find that it

    becomes very difficult to get things to connect(which is pretty much

    what you are describing). The reason for this is that all of the

    components in EAGLE's standard library are made to a 0.1" grid.

     

    If this is the case, then the fix is to use the snap-on-grid-sch.ulp

    that comes with EAGLE to bring everything back onto a 0.1" grid. From

    there you'll likely have to reconnect many of the components, make sure

    to use the NET command for this. To run a ULP, type run on the command

    line and press enter. Then select the ULP from the list and click Open.

     

    hth,

    Jorge Garcia

     

     

Reply
  • 0

    Hi John,

     

    I hope you're doing well. First thing is to make sure you use the NET

    command, don't use WIRE. WIRE should only be used for artistic purposes.

    Hopefully a name change will one day reflect that.

     

    What GRID size are you using? On the schematic, you should always stick

    to a 0.1"(2.54mm) grid. If you deviate from that you'll find that it

    becomes very difficult to get things to connect(which is pretty much

    what you are describing). The reason for this is that all of the

    components in EAGLE's standard library are made to a 0.1" grid.

     

    If this is the case, then the fix is to use the snap-on-grid-sch.ulp

    that comes with EAGLE to bring everything back onto a 0.1" grid. From

    there you'll likely have to reconnect many of the components, make sure

    to use the NET command for this. To run a ULP, type run on the command

    line and press enter. Then select the ULP from the list and click Open.

     

    hth,

    Jorge Garcia

     

     

Children
  • 0 in reply to autodeskguest

    Hi Jorge,

     


    Thanks for the reply. You most likely hit the nail on the head, as I did change the grid size to something a lot smaller than 2.54mm because I thought that would give me more precision when laying out my components. I'm imagining that the snap-on-grid-sch.ulp is a standard script that comes with Eagle? Unfortunately not being near my machine at the moment doesn't allow me to check, but if this is the case, then I have no problems reattaching the components. It's a small price to pay for my long term sanity. It's also a really good mistake for me to learn from, so I really appreciate your suggestion.

     

    Kind regards,

    John