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Is there any free software that can convert Cadence files (.dsn, .opj, .brd) into Eagle CAD files (.brd, .sch)?

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  • \$\begingroup\$ A quick google search revealed these: element14 forum thread and eaglecentral forum thread. You can also look at cadsoftUSA ULP downloads. \$\endgroup\$ – Evan Jul 14 '14 at 12:12
  • \$\begingroup\$ If you ever get stuck doing translation by hand, importing gerbers onto a graphic layer and placing/routing over them can at least let you salvage the design thought which went into the original. \$\endgroup\$ – Chris Stratton Jul 31 '14 at 20:15
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Importing from different CAD packages often has issues.

There are three main parts: schematics, libraries (containing schematic symbols and PCB footprints) and PCB layout.

CAD packages can import them as individual's but do not necessarily import all three as a linked package. This can cause issues for future maintenance of the boards and manufacturing issues due to footprint's not being verified and validated fully during the translation.

A safer and often shorter in the long term approach is to duplicate the library parts and verify all symbols and foot prints, followed be re-entering the schematics, (this will be trivial once all the parts are in the library) and re-laying out the PCB using the existing PCB files as a guide.

This is the only way you can be certain all parts used are correct, and you have not created or lost any artefacts during the PCB importation process.

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There is no tool for the purpose , as of now. You have to rework.

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