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what is my best way to combine two files?

Jimdive

i have two pcb and two schemait which is orcad format. it need combine two to one. but there have many Refdes is the same. if i update Refdes then netin to PCB. all tracks back to Rats .i don't know what is the best way for me to do this. i don't want redraw it.

Thanks for any advise!

  • pcb viet nam

    Hi,

    I think you export sub-drawing in file pcb . Then import sub-drawing will solve problem of you

  • Jimdive

    Thanks pcb viet nam! i done it like you said,but all Refdes of parts change to R* C* U*. how can i synchronize Refdes between sch and pcb? Combination two sch must be update Refeds of part.

  • pcb viet nam

    Hi Jimdive

    for refdes don't change to R*C*... when export you must click choose Preserve Refdes. But case of you i thinks only export line, clines, via, shapes ...(don't export symbols). Because you said :  if i update Refdes then netin to PCB. all tracks back to Rats

  • redwire
    Not sure what your experience level is but what you need to do is renumber one board with reference designators x1000 and up.  Then merge the two designs together and you should be good to go.
  • Jimdive

    Thanks all!

    my method as following:

    1)Creating B sch BOM

    2)merging B sch to A .

    3) Reset B sch parts references to "?"

    4)Incremential references all.

    5) copy B sch to a new project Create BOM and Netlist

    6)Exporting B placement txt

    7)Comparing both  BOM and modify placement txt. e.g : if C1 changed C55 then modifying placement C1 to C55

    8)Netin to B pcb.

    9)Reimport  step 7)  placement txt

    10) Sub-Drawing B PCB to A

    many steps. i hope a good way to do this.

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