how do i rectify these clearance violations(refer the reply for the error in drc check)
You don’t seem to have a valid net assignment from a schematic.
how do i assign a valid net assignment.im new to kicad.is it possible to change it now without disturbing the routing which is already done
The normal way is to put a symbol in the schematic for your footprint. This symbol mus have a pin with the name “V” because that is the “pin number” of those pads.
It is possible to click on a pad in the PCB editor, open it’s properties window and set it to another net, but this is tedious, and you will probably loose that information the next time the PCB is updated from the schematic. At the moment, creating a PCB without a schematic is still a quite horrible and barely supported workflow in KiCad. Attempting it is usually more trouble then creating a schematic.
But I do find it a bit puzzling that KiCad complains about a clearance that is twice as big as it should be.
The footprint pads named “V” should all be named “25” instead; that should help
thank you,that helped.Can you explain what just happened?
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If you want to create a footprint that contains multiple different overlapping pads, some SMD and some PTH, that all are represented by one symbol pin, you need to give all these pads the same name (matching the symbol pin). You can’t arbitrarily name your thermal pads “V” and overlap them with a pad named “25” because there is no matching symbol pin named “V”, and so KiCad doesn’t know that these are electrically supposed to be the same.
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@craftyjon how do you explain Error messages saying that clearance that should be 0.2mm actually is 0.4mm and it is error?
I would expect them saying 0.2mm, actual 0mm.
Don’t know, would need the actual full project to investigate.