I am new to the forum and new to Kicad and consider myself a beginner in making my own circuit boards.Please excuse me if I say something stupid. I am designing a PCB with SMD LEDs for my Star trek next generation Mk7 tricorder prop. I made the schematic and did a board layout with Pcbnew. When I was assigning footprints to the SMD LEds I picked I discovered there were no footprints for my specific SMD LEd (I picked these from digikey). I noticed digikey had “generic” footprints for 1206,0603,and 0805 SMD LEDs so I assigned those to my LEds . I guess I assumed that the footprints for the different sized LEds would be standardized.However, when I was reviewing my design I checked the datasheets on the SMD LEDs and saw that the solder pad size and spacing was different from the generic footprint I had assigned .
So I have been watching tutorials on making footprints.I can make the solder pads and get the spacing, but I am a bit confused about the outline around the footprint. Am I supposed to make an outline showing the outline of the part on the f.fab layer ? None of the footprints of SMD LEDs I have found seem to do this. I also read that I should draw an outline on the f.silk layer,but this will have to be a little bigger than the actual led because the there will be no silkscreen where the solder mask is applied. Is this correct?
Again I apologize if this seems obvious.I tried a search and couldnt find any answers to my questions and I am not asking anyone to design anything for me-just offer some guidance.If there are tutorials you could point me to that would be great too.