Hi,
I'm a newbie and I've been working on a blank shield for Arduino Due to use as the basis for later shield designs. I started from a copy of the open source schematic and PCB of the Arduino Due (https://store-usa.arduino.cc/products/arduino-mega-proto-shield-rev3-pcb) which I've then opened as a new project and electronics design in Fusion 360. I deleted all parts and traces other than the pin headers and PCB mounting holes. Which all went as planned. I've then started to work up the custom shields I had in mind. I've noticed that parts I add to the schematic are showing up as footprints on the PCB, but that airwires corresponding to the nets added to the schematic are not showing up. I went back to the "blank board" that I created first (as described above). As a minimal test I added a net connection between the GND pins at the top and bottom left of the board (as shown in the screen shot below). No airwire appears in the corresponding PCB.
How have I disabled Airwires, and how do I turn them back on?
Thanks for reading.
Rowan.
