Hi,
I don't recall if this was brought up before, but there is a very irritating bug in the influence of Rules/Routing layers and the SPECCTRA export function. It is easy to reproduce. Do the following: Take a multilayer PCB (no matter how many layers, but at least one inner routing layer) and define the layers in "Layer Stack Manager" as usual. Go to "Design/Rules/Routing Layers/Properties" and define the layer directions as desired. Close with "ok". Go back to the "Layer Stack Manager" and delete one inner routing layer. Check in "Design/Rules/Routing Layers/Properties" that the layer is not active (selected and editable) any more. Do an export to SPECCTRA. Check the resulting .DSN file, and you will see, that the deleted layer is exported to SPECCTRA as active routing layer, resulting in SPECCTRA routing the design with too many layers. A clear, reproducable bug. Workaround: Before deleting the layer in the "Layer Stack Manager", go to "Design/Rules/Routing Layers/Properties" and reset the layer to "not used". Then delete it in the "Layer Stack Manager", and it is gone for good. And another: In the "Layer Stack Manager", when you rename a layer, the "Layer Stack Manager" shows the new name, and so do all other PCB functions related to layers, but when you create Gerbers, there shows up a layer with the old name, plus a layer with the new name, but this one is empty apart from multi-layer elements. Dangerous pitfall. Gisbert Auge N.A.T. GmbH www.nateurope.com ************************************************************************ * Tracking #: A54FA970A36B764CA055B071E0BC57D45CD668EB * ************************************************************************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *