Know the kit
Choose a component to see its symbol, what it looks like and what it does.
Air supply and exhaust
Cylinders
3/2 valves
5/2 valves
Flow and timing
Sources & credits: Symbols drawn to ISO 1219, as used in N5 Engineering Science. Kit drawings by R Stewart, from the Matrix CP2080 kit. Other drawings by R Stewart. Full site credits are on the credits page. R Stewart - October 2026