Tim, One of my major complaints about Protel is its lack of assembly layer capability, there should be 2 other layers call them mechanical or whatever that automatically mirror AND change to a designated other layer when that part is pushed to bottom or top. The Top & Bottom Overlay layers do this however there are many times and situations where I want an exact image of the part but would not want all of that in silkscreen. One good example is connectors that hang over edge of board, why provide silkscreen data that clearly will go off edge of board. Also there may be a little more detail required in an assembly view you would not want on silkscreen. There is no clean way I've seen in 99SE to handle this. Not sure I'd call it dangerous, but I just do not like putting the kind of detail into a silkscreen layer that could potentially end up on pads. Yes I know the fab vendor can do this but why put too many places on a design that this has to be done. Bob Wolfe.
----- Original Message ----- From: "Tim Fifield" <[EMAIL PROTECTED]> To: "Protel EDA Forum" <[EMAIL PROTECTED]> Sent: Tuesday, September 10, 2002 8:33 AM Subject: Re: [PEDA] You can't get there from here (I think)... > Joe, > > Please explain why this sounds dangerous? What do you put on your mechanical > layer that is not contained on the silk screen? > > Tim > > -----Original Message----- > From: Joe Sapienza [mailto:[EMAIL PROTECTED]] > Sent: Monday, September 09, 2002 4:33 PM > To: Protel EDA Forum > Subject: Re: [PEDA] You can't get there from here (I think)... > > > Tim, > It sounds as if you intend to use the silkscreen layer for the assembly > info? A dangerous practice and extra work. Usually do all this stuff on a > separate mechanical layer. Then go the PDF route. > Joe > > > ----- Original Message ----- > From: "Tim Fifield" <[EMAIL PROTECTED]> > To: "Protel EDA Forum" <[EMAIL PROTECTED]> > Sent: Monday, September 09, 2002 3:08 PM > Subject: Re: [PEDA] You can't get there from here (I think)... > > > > Richard, > > > > What I do is make a copy of the .ddb file (renaming it appropriately) and > > create the assembly drawing from it. I delete all but the .pcb and print > > preview files. > > Then I auto position all ref des to center (with correct rotation). > > In the print preview I use top and bottom overlays with the mechanical > > outline and title block. I set it up on an 11x17 and create a .pdf file. > > > > I find this is quite neat and clear when assembling as the ref des are > > inside the component outline. > > > > Tim > > > > > > ************************************************************************ > > * Tracking #: 524F310DD953EB41BC284D893FB206FADF1F2123 > > * > > ************************************************************************ > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
