4 Replies Latest reply on Apr 6, 2016 2:52 AM by jos.van.gemert

    Creating parts with symbols and no pins.3

    milostnik

      Hello folks,

      we would like to add to our parts a sticker. This means a symbol has no pins, and the geometry has no pins as well, though it has some via keepout. All this must be associated to a part.

       

      Three questions arise:

       

      how to design a symbol with no pin

      how to design a cell with pin

      how to create a part when there are no pins for linking.

       

      any suggestion welcomed.

      Matija

        • 1. Re: Creating parts with symbols and no pins.3
          miles

          I am also curious as to how to do this. I often use high voltage parts in my designs whose nets are "in the air" (i.e. they don't touch the board). It would be very useful to be able to place a part outline with reference designator, even though it isn't listed as connecting to anything in the netlist.

          • 2. Re: Creating parts with symbols and no pins.3
            greg.hall

            Hi

             

            We have maybe a similar problem, in that we require a barcode label to be placed on our boards.

             

            The way we do this is define a mechanical cell.

            Goto Cell Editor

            Then select your required partition (e.g. labels)

            Then on the second tab is the Mechanical cell option (select this)

            You can then create a cell which has no pins, you can add the required graphics and route/plane obstructs as required.

             

            Once completed,

            With your pcb design, goto Setup then Library Services.

            Select the Cells tab.

            Then you can import your new label cell from the new Labels partition.

            This then adds to the CellDB partition within the design.

             

            Then you go through Place Parts and Cells dialog and from the Criterion drop down menu select Mechanical Cell.

            Your new label will then be available to place on your pcb as if it were a regular component.

             

             

            In our designs we also use this method for High Voltage warning labels and Antistatic warning labels.

            • 3. Re: Creating parts with symbols and no pins.3
              jos.van.gemert

              Hi Matija,

              We get exact the same question from our customer and are puzzeling how to achieve this.

              So far without success.

              I wondered if in the meantime you have found a solution to solve the issue and would appreciate it if you could share it with us.

              Thanks in advance.

              Greetings,

              Jos

              • 4. Re: Creating parts with symbols and no pins.3
                jos.van.gemert

                Hi Greg,

                The working method you describe is also familiar with us and works great for placement in the layout only, but now the designer wants to place the mechanical part already in the design phase in the schematic.

                Then as far as I know the mechanical part has to be replaced by a package part, including a pin and RefDes as mandatory properties.

                Do you have any experience with this?

                Greetings,

                Jos