Seetrax XL Designer
The schematic is used by the software to work out the wiring nets (rats). To design the pcb artwork, parts are dragged out of the parts tray onto the pcb design screen . . .
As parts are placed, the connection nets are shown to help the user position parts in a way that helps the routing process.
The aim is to keep the rats as short and untangled as possible . . .
. . . to give the autorouter a chance
Actually, prior to this we will get students to manually route the design. It takes them between 30-60 minutes to do. But it makes them very appreciative of the autorouter when we reveal it!
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