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Thu, 27 Aug 2015 08:56:42 -0700 (PDT) | |
In-Reply-To: | <CAM2RGhQJtVrX0RCn5VejS5m2HJzbcSmfhGU5VrJ9LDM-JkT10A@mail.gmail.com> |
References: | <alpine DOT DEB DOT 2 DOT 00 DOT 1508191007150 DOT 6924 AT igor2priv> |
<alpine DOT DEB DOT 2 DOT 00 DOT 1508202030290 DOT 6924 AT igor2priv> | |
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Date: | Thu, 27 Aug 2015 11:56:42 -0400 |
Message-ID: | <CAM2RGhTPqz8tfSs==s2LoCuHzrrcx5t+GWb3iDPMm6U-UvwpEA@mail.gmail.com> |
Subject: | Re: [geda-user] [pcb-rnd] parametric footprint: dimensions, qf(), |
qfn() and tqfp() | |
From: | "Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
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On Thu, Aug 27, 2015 at 11:56 AM, Evan Foss <evanfoss AT gmail DOT com> wrote: > On Thu, Aug 20, 2015 at 6:42 PM, <gedau AT igor2 DOT repo DOT hu> wrote: >> Hi all, >> >> I've implemented two major features in the parametric footprint support in >> pcb-rnd (and in the online version). >> >> The preview tool, fp2anim, can display dimensions on the annotation layer. >> This is useful for checking whether a footprint really matches the >> datasheet. Details: >> http://repo.hu/projects/pcb-rnd/devlog/20150820a_dimensions.html >> >> The more important feature is a new class of footprints. There is a low >> level, generic, but complicated to use qf() which should be able to generate >> anything that has evenly spaced pads around a rectange. >> >> There are frontends to qf(), called qfn(), tqfp() and lqfp(). These >> generators are very easy to use: they have only a few parameters, those that >> are usually specified among the first lines of a package datasheet. They >> can't handle special cases, but can safely generate any of the usual >> QFN/TFQP footprints. Details: >> http://repo.hu/projects/pcb-rnd/devlog/20150820b_qf.html >> >> The online version of the parametric footprint generator is accessible at >> http://igor2.repo.hu/cgi-bin/pcblib-param.cgi >> >> The source is in svn: svn://repo.hu/pcb-rnd/trunk/pcblib/parametric >> >> Comments, bugreports, feature requests are welcome. >> >> Regards, >> >> Igor2 >> >> > > Random thought. A plugin in gEDA that lets you declare a single box Err I meant option to the footprint generator. > with one pin as a hole of X type (M3, 4-40, etc) close or loose fit > and then defines for PCB what the dimensions should be with ether a > silk screen ring to outline of head diameter or copper under the whole > area (via). > > Right now I have a set of symbols for screws and a set of footprints > but it would be cool and relatively simple to autogenerate them. > > -- > Home > http://evanfoss.googlepages.com/ > Work > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/ -- Home http://evanfoss.googlepages.com/ Work http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
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