Serious question. In what professional (or not) setting would one seriously use an autorouter for designing PCBs? No sarcasm intended. I have tried a few but have always found that it's best done manually. But it seems that CAD tool companies spend a significant amount of time developing their autorouters. Is there any serious use for them? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .