Looking for an easy way to manage wire when prototyping PCBs? Ever consider using a mechanical pencil to dispense it? Turns out, it works pretty well — and all you need is a 3D printed attachment!
[Proto G] is using a Papermate 0.5mm mechanical pencil, which means if you get 0.5mm wire (or solder) you can use it to dispense the wire without tangling your spool. In the demonstration, he uses 0.5mm magnet wire which has a thin enamel coating on it and melts away easily when you solder it.
The 3D printed wire-spool and guide snap onto the back of the mechanical pencil allowing you to load it up with a considerable amount of wire for prototyping. He has all the .STL files available on his Instructable in case you want to add this tool to your workshop.
Next up, why not make a solder paste dispenser too?