No you have that the wrong way around... The TO220 footprint is for standard TO220 transistors. The footprint that you need is the LM78xx, note that there is also the LM78LXX just above it, so pick the correct one.
For a look-see, fire up CVpcb on the NandSynth circuit, and scroll down to the end of the list where U2 is, you should have LM78XX selected as the footprint. Highlight this line then click on the View selected footprint icon, 4th along from the left, and you will see the footprint open in a new window, with the pads or VI, GND, VO and a large pad number 4 Andy On Sun, 05 Jul 2009 03:03:54 -0000 "[email protected]" <[email protected]> wrote: > Ahhh. I see T0220 is what i should have used. > What i did was change the LM78xx footprint in the module editor > and saved under my own library. > Kida confusing when my part was a LM7805, so i figured the footprint would > be the same, or close i.e. LM78xx. > I now know better. > MMM. i wonder should i go back and change it to the T0220, or is ok > to leave with one i changed in the editor? > > Thanks agian. > > > --- In [email protected], Andy Eskelson <andyya...@...> wrote: > > > > No, if you use the LM78xx footprint you get a TO220 package and the pins > > ARE VI VO and GND, the same is true for the LM87L package where you get a > > TO92 package. > > > > Did you try to set a standard TO220 package for the regulator by any > > chance? if so that would explain the difference. > > > > Andy > > > > > > > > > > On Sun, 05 Jul 2009 00:13:20 -0000 > > "acidb...@..." <sunblast...@...> wrote: > > > > > Ok the LM7805 pads were labeled incorrectly, PCBnew was expecting, > > > #1,#2,#3... but they were labeled VI,GND,VO, which is schematically > > > correct, but not for pcb.--for KICAD anyway. > > > I imagine the same is true for led's in my sequencer project, I'll > > > have to check later. > > > I think you mentioned something like this in an earlier reply. > > > > > > You've been a great help andy, thanks a bunch. > > > Finally got my synth board done correctly, now off to the manufacturer! > > > > > > > > > > > > > > > --- In [email protected], Andy Eskelson <andyyahoo@> wrote: > > > > > > > > NBothing more than finger trouble. > > > > In the ten-step file, you have not connected many of the components. > > > > This > > > > is a little failing of the system, in that when you click with the > > > > mouse, > > > > it often jumps to the nearest grid square. You have to keep your eye on > > > > the cursor. > > > > > > > > The other problem and this is the main one., is that you did not seem to > > > > allocate any footprints to a lot of the components. Perhaps you did mut > > > > somehow did not save them. > > > > > > > > I've emailed you the files ten-step files back. > > > > > > > > Andy > > > > > > > > > > > > > > > > > > > > > > > > On Sat, 04 Jul 2009 14:20:09 -0700 > > > > rocko <sunblaster5@> wrote: > > > > > > > > > Ok Andy thanks, here are the schematic and net list files. > > > > > > > > > > On Sat, 2009-07-04 at 21:55 +0100, Andy Eskelson wrote: > > > > > > > > > > > > > > > > > > The 78xx and the LED work fine, I've used them myself many times. > > > > > > The 4th pad on the 78xx is under the tab, and is not actually used, > > > > > > it's > > > > > > there to prevent tracks being routed near to where you would bolt > > > > > > the > > > > > > regulator down. (I have deleted this pad o some of my ccts) > > > > > > > > > > > > If you want, send me your files and I'll see if I can spot what you > > > > > > are > > > > > > doing wrong. It will be simple, but as always it takes a little > > > > > > practise > > > > > > to get the hang of thins. > > > > > > > > > > > > Andy > > > > > > > > > > > > On Sat, 04 Jul 2009 20:40:23 -0000 > > > > > > "acidblue@" <sunblaster5@> wrote: > > > > > > > > > > > > > There is only one LED in eeschema and only one LED(LEDV), in CVpcb > > > > > > > and yet they don't match, no wires in Pcbnew, however the pins > > > > > > > seem > > > > > > to match as far as i can tell. > > > > > > > > > > > > > > As for the LM7805, none of the LM78xx or LM79xx footprints > > > > > > match,again no wires in pcbnew, i noticed the LM78xx footprints > > > > > > have a > > > > > > 4th pad for bending the LM7805 and attaching it to the board, but > > > > > > the > > > > > > schematic does not. > > > > > > > Hopefully i can just delete the 4th pad and create my own mod > > > > > > > file, > > > > > > fingers crossed. > > > > > > > > > > > > > > I've doubled checked my schematic, have no error's in erc. > > > > > > > I like KICAD I think it's the best open source PCB design > > > > > > > software, > > > > > > > way better than eagle, but this thing with the footprints is > > > > > > > really > > > > > > > frustrating, it needs to be addressed in future releases. > > > > > > > > > > > > > > As suggested I've check the PDF files for footprint docs, which > > > > > > > are > > > > > > helpful, but when there is only one footprint (LEDV) for a > > > > > > schematic > > > > > > > symbol it should match. > > > > > > > > > > > > > > Unless of course I'm a complete idiot. > > > > > > > Any help with the LM78xx and LED would be greatly appreciated. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------ > > > > > > > > > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------ > > > > > > 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 > > >
