DIY Z80 microcomputer from scratch

„My Z80 microcomputer is hand wired using the wire-wrap prototyping technique. This method uses thin 30 gauge wire, a special wire-wrap tool, and wire-wrap sockets. The sockets have 1/2 inch long square posts, which you use the tool to wrap (or twist) the wire onto the post. As long as you have 5 or more wraps on the post for a single wire, the connection is semi-perminant. This method was used because it’s easy to change connections and is faster than soldering each wire. Wire-wrapping was a popular method used in building early computers. In fact, the AGC computer used for the NASA Apollo missions were completely wire-wrapped! After I finished my computer, I went through more than 350 feet of wire!“

DIY Wire Cutter and Stripper

„A desktop machine that will measure out a length of wire and strip a length from either end.

To create lengths of wire that fit perfectly into an electronics breadboard. (we produce kits and you can only hand cut and strip so many wires before you go crazy)

This is also the first item in a concept is working on dubbed „open manufacturing“. (more to follow)

It breaks down into three parts
1. Wire Feeder – This feeds the wire in measured lengths forwards and backwards (uses a stepper motor)
2. Wire Stripper – This runs an exacto knife blade around the insulation of the wire twice. (uses a small servo motor and normal sized servo motor)
3. Wire Snipper – Snips the wire at the end. (uses a pair of wire cutters and a cheap handheld drill motor)“