X-Authentication-Warning: delorie.com: mail set sender to geda-help-bounces using -f X-Authentication-Warning: envy.delorie.com: dj set sender to dj AT delorie DOT com using -f From: DJ Delorie To: geda-help AT delorie DOT com Subject: Re: [geda-help] Four layer board In-Reply-To: (geda-help@delorie.com) Date: Thu, 02 Apr 2020 17:58:29 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Reply-To: geda-help AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-help AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk "Cam (camfarnell AT bitflipper DOT ca) [via geda-help AT delorie DOT com]" writes: > I'm using PCB 4.0.2. The board is too complex and tight to route with > two layers. My next thought is to use four layers with the inner > layers being devoted to power and ground with almost the entire layer > copper and using thermals where it connects to pins and a gap for > non-power pins. But I could see no way to achieve this with PCB. Am I > missing something or is that just not supported? pcb supports up to 16 layers in the default config, and more if you reconfigure. The default stackup is a 6 layer board with an outline layer and a spare layer, IIRC. The Getting Started guide has a demo of a multi-layer board http://www.delorie.com/pcb/docs/gs/gs.html#SMT-Blinker