Is there a standard method to define pcb pads with non round holes in? I want to fit a DC power connector to my pcb and it needs slotted holes.
DesignSpark doesn't do non round holes on component libraries for some reason and there appears to be some convoluted way to hack it. (Seems like a massive design flaw to me!)
Can I add a silk screen to a different layer outlining the hole?
Just tell the manufacturer what I want?
Use a better Ecad tool?
Any other options?