Hi, No problem at all. Kicad uses inches internally, that's the difference in the 4th decimal using mm.
Anyway one must be sure, no matter the unit used, that the pcb maker has the needed drill size. Or the other way round, one must know the drill sizes available and design with them in mind. I do not think (but I may be wrong) that a pcb maker could be as accurate as 1/10000 mm. Pedro. > Hi, > > I want to create pads with a pad drill size of 1 mm and a pad size of > 1.8 mm (round shape). So, the first thing I did was switching from > inches to mm. > > When I type in the values 1.0 and 1.8 for Pad DrillX and Pad Size > respectively in the Pad Settings dialogue box, the system accepts the > values. > > However, when I place a pad with the new values and then I edit the > path, the values for the pad drill and the pad size are not any more > 1.0 and 1.8, but 1.0008 and 1.8009 mm respectively. > > Why this change? I know it's not a lot, but when the gerber files > will be generated, I assume those values will be taken into account, > not my 1.0 and 1.8mm. > > Will this not give problems when making the PCB with a PCB supplier? > If it's not an issue, then fine by me, but I want to be sure of it... > > Best rgds, > --Geert > >
