Since mid-2016, I have been running sessions at my College to teach children how to build Computers. The CoderDojo structure is set up for any child aged between 7-17 to be able to gain skills in the Digital & Creative Sector that they would be unable to learn elsewhere.
My sessions run on a monthy basis, and teach a different technical skills, the most recent being PC Building & Networking (Crimping Ethernet Wires). These sessions teach skills that are not commonly known, but are becoming more and more in demand, due to schools not covering a large amount of Computing until after year 10.
If you want to get Involed in a CoderDojo Session near you, then check out: https://coderdojo.com/attend-a-dojo/