thanks to everyone that posted on this. i understand now. it would have been inconceivably horrible if we had built and sold off on defective boards. these parts go in navy planes. and they could have very possibly passed functional testing and then started failing left and right once the planes started vibrating them around. thank god i don't design suspension bridges. ;-)
there's irony there, i guess... you spend so much time sweating the details and then you let some big gaping bug in the design slip right past you. thanks again, miker -----Original Message----- From: Dennis Saputelli [mailto:[EMAIL PROTECTED]] Sent: Thursday, November 08, 2001 5:00 PM To: Protel EDA Forum Subject: Re: [PEDA] keepoutlayer and planes ?? technically and to be pedantic you should say Place Line (not track) Dennis Saputelli Ian Wilson wrote: > > On 03:29 PM 8/11/2001 -0500, Robison Michael R CNIN said: > >hello, > > > >my questions: > > > >1. the dark green i'm seeing represents the "negative", or holes, in the > >power plane, correct? > > Correct > > >2. after simply drawing the keepoutlayer back in, i am not seeing the > >dark green power plane void outside the keepoutlayer. does this mean > >that i still have the power plane running right to the board edge? > > Keepout does not affect planes. > > >3. without a keepoutlayer do the planes extend right to the board edge? > > With or without the keepout - Yes, planes extend to the edge. > > >4. how do i recess the power and ground planes back in a few mils on > >this board? > > Use tracks on the plane layer. The simplest method is to use select all > the board outline tracks and the use the Paste Special to paste onto the > current layer, changing the layer to each of the plane layers and > pasting. Then de-select all the tracks on the board outline layer, leaving > only the tracks on the plane layers selected, and then globally change the > selected track widths to double your backoff - so a 50 mil track gives a 25 > mil backoff. You can go a bit higher but usually not necessary. > > >5. can i visibly see the planes recessed back from the card edge in protel > >or do i need to generate gerbers and use camtastic to do that? > > Yes see point 4) > > Ian Wilson -- ___________________________________________________________________________ www.integratedcontrolsinc.com Integrated Controls, Inc. tel: 415-647-0480 2851 21st Street fax: 415-647-3003 San Francisco, CA 94110 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
