Step 5: Measure and cut the wire
Use the planning sheet to determine what connection to make.
Before cutting the wire, strip 2mm of insulation from the end.
Line up the wire on the perfboard so that it extends from one connection contact to the other to get a sense of how much wire you'll need.
Add about 5mm extra length, cut the wire and strip off 2mm of insulation.
You now have a wire with 2mm stripped off both ends.