[sdiy] Eagle woes, was: Free CAD

[ChristianH]

> So Ingo and all other experienced Eagle users please tell us how to
> make sure the connection on the Eagle schematic drawing is really a
> connection and not just looking like it.

If you keep the grid switched on during schematic editing, this
shouldn't happen easily. What can be a pain in the S: when a library
designer has put pins slightly off-grid. But, as has been said, the ERC
should catch this. 
Although I may have a somewhat sloppy attitude for some things you
wouldn't do on a commercial project, I always like to keep the ERC (and
later on the DRC) report as tidy as possible. In this respect, IMHO
Eagle shines - for each item reported you can say "it's alright, I know
what I'm doing", and this remains sticky for that particular location.
Until there is some modification of related components/connections, when
it will reappear (and can be shoved away again...).

Chris



On Wed, 23 Feb 2011 13:37:18 +0100 Ullrich Peter
<Peter.Ullrich at kapsch.net> wrote:

> Hi!
> 
> Moving the parts to see if they are connected works fine and is the last possibility.
> The first you should make is the Electrical design rule check.
> If you made your parts correctly (so the pins are declared correctly) you get a warning if there 
> are unconnected inputs ot two outputs working against each other.
> 
> But I have to say that the old connection problem got better the last few version.
> I only got it last time when I completely exchanged an IC and replaced it with another on the same place.
> Here I had to move it again once to see if all wires have been connected and some of them were not.
> After I put the part in place again the connection were OK.
> 
> The old problem of unconnected GND connection if there was no little green wire between GND and a part is removed.
> Now you can place a GND symbol direct to part pins and you get a proper connection.
> 
> Ciao
> Peter
> 
> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Mikko Helin
> Sent: Wednesday, February 23, 2011 1:26 PM
> To: Ingo Debus
> Cc: Synth-DIY DIY
> Subject: Re: [sdiy] Eagle woes, was: Free CAD
> 
> So Ingo and all other experienced Eagle users please tell us how to
> make sure the connection on the Eagle schematic drawing is really a
> connection and not just looking like it.
> One way I've used is to try moving all the parts to see if the
> connections follow but there must be other ways around it.
> 
> - Mikko
> 
> On Mon, Feb 21, 2011 at 9:50 PM, David G. Dixon
> <dixon at interchange.ubc.ca> wrote:
> > Plus, it is a bit glitchy, as you will think you've made a connection, but
> > it might not (for whatever reason) actually connect the trace on the PCB.  I
> > wonder how many layout errors on Eagle are user errors, and how many are
> > Eagle glitches?
> >
> 
> On Mon, Feb 21, 2011 at 11:11 PM, Ingo Debus <igg.debus at t-online.de> wrote:
> >
> > Am 21.02.2011 um 20:50 schrieb David G. Dixon:
> >
> >> I don't use any of these myself, but I work with
> >> someone who converts my designs to Eagle.  That program makes THE most
> >> illegible schematics I've ever seen,
> >
> > Hmmm.
> > Isn't it more the person drawing the schematic being responsible for
> > illegibility rather than the program?
> > ;-)
> >
> > Eagle has a nice feature called "smash". You can move the component's names
> > and values around. Used with care, it can increase the legibilty a lot.
> >
> > Ingo
> > _______________________________________________
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> >
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