> -----Original Message----- > From: Paresh Pai [mailto:[EMAIL PROTECTED] > Sent: Monday, March 29, 2004 8:43 AM > To: protel forum > Subject: [PEDA] reg hole on PCB and library > > Hi everybody. > > I am facing the following problems in 99SE > > 1. I have designed a single sided PCB for a microcontroller > programmer. It has a 7812 regulator chip which is to be > soldered and also fitted to the PCB (using a small nut), so > that the PCB ground copper acts like a heat sink. To do this, > I have placed a rectangular copper fill with a hole in the > center and aligning the hole with that of the 7812 (TO220 > package).To generate the hole I placed a pad(multilayer) and > adjusted its hole size to be equal to X-size and Y-size (all > 100 mil).But when I generate a print preview by using > following settings, I do not see the hole in the copper fill. > The whole copper fill appears as black. > The settings I use are : > > Include Top side > Include bottom side > Include double sides ........ all are selected(checked) > > Show holes ......selected(checked) > > Color set....... Black & White > > The layers selected in the preview are > Bottom layer > Keepout layer > Multilayer > > Can anybody help me to find the hole ?
That seems strange, your layer build up works OK for me, show drill hole in preview. Have you tried promoting the multilayer pad to the top of the list? I tried the same thing using a fill on the top layer instead (I know you do not us it) and had to promote the multilayer to the top before I could see the hole for the 'tab' Try moving the 'multilayer' layer to the top and have all other layers below it. > 2. My second problem is regarding libraries. > When I load a new schematic, is there any way to know the > library from where each component was taken by the designer > of the schematic ? If you double-click on a component , it > shows the library reference,footprint etc. but the library > is not known. Similarly in PCB editor, it shows the footprint > etc. but the library is not shown. I have never had to do that so I do not know. Working with multiple libraries with possibly same name parts is always a bad idea. However if you have concerns, you can create a separate project library from the PCB and SCH For PCB it would be Design, Make Library. All footprints currently active on your PCB will be merged into one library. John * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
