The good grid size is one that matches the libs... Normally the default is fine. What can happen is that if you create your own parts, and use a different grid size then things don't align.
As a silly example, say you set the grid to 55ml when designing the part, and still used 50ml for the normaly layout. That would cause all sorts of problems. I've learnt to be very careful with grid sizes when creating parts. :-) OK with ERC that's fine. It's probably a name mismatch as Alan suggests. Dont forget that there very often there IS NOT a 1:1 relationship between a lib and mod. You could have a BC108, 2N3904, and any number of other transistors. They would all have the same footprints, so you would hope that they would have the same pin names, i.e. ebc however some get numbered pins. Then you have FETs, sgd pins rather than ebc but still the same footprint. I've found diodes with pins 1 & 2 when a & k would be better. When I find such problems I normally create another module and name it something like TO92-ebc or LED-5mm-ak. Andy On Fri, 03 Jul 2009 01:23:31 -0000 "acidb...@ymail.com" <sunblast...@gmail.com> wrote: > I always do an ERC check, till it gets to 0. > Whats a good grid size? I always use the default,which i think > is 50ml, should i try something smaller? > BTW this always happens in kicad, i could never figure out why. > > > > > --- In kicad-users@yahoogroups.com, Andy Eskelson <andyya...@...> wrote: > > > > Every connection you make should have a wire in the rats nest. > > > > Have you run an ERC on the circuit? > > The most common problem is that you forget to add junctions when there > > are more than one connection on a wire. (I'm always doing this) > > > > Another problem is that you mess up the grid size and the connection does > > not quite connect to a pin. > > > > In both cases the ERC check you throw up a list of bad connections and > > draw a little arrow where the problem is. > > > > > > Andy > > > > > > > > On Thu, 02 Jul 2009 18:35:13 -0000 > > "acidb...@..." <sunblast...@...> wrote: > > > > > when i open Pcbnew, after CVPcb, i noticed some of my led's and resistors > > > aren't connected, no rats nest. > > > Shouldn't every module have a connection ? > > > > > > > > > > > > ------------------------------------ > > > > > > Please read the Kicad FAQ in the group files section before posting your > > > question. > > > Please post your bug reports here. They will be picked up by the creator > > > of Kicad. > > > Please visit http://www.kicadlib.org for details of how to contribute > > > your symbols/modules to the kicad library. > > > For building Kicad from source and other development questions visit the > > > kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! > > > Groups Links > > > > > > > > > > > > > > > > ------------------------------------ > > Please read the Kicad FAQ in the group files section before posting your > question. > Please post your bug reports here. They will be picked up by the creator of > Kicad. > Please visit http://www.kicadlib.org for details of how to contribute your > symbols/modules to the kicad library. > For building Kicad from source and other development questions visit the > kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups > Links > > >
