AUTOMATING A MECHANICAL TYPEWRITER

inspect out all the work going on in the cupboard below this typewriter. The hack which automates a mechanical typewriter  is for an art installation, however wouldn’t it be fun to develop one of these to utilize as a résumé printer? It truly makes us desire we had an old typewriter sitting around.

It would have been much much easier to patch into an electric typewriter, however we have seen the string technique utilized on those as well. In this situation a loop of string attaches to the the bar under each key, enabling a pull from below to type the character. An automotive door lock actuator ([Harvey Moon] tells us they’re not solenoids) links to the other end of the string for each key. however then you’ve got to have a method to drive the actuators as well as that’s where the protoboard full of forty relays seen to the ideal comes into play. That image, which was taken from the demo video after the break, shows the board being testing. We’d assumption a lot more wires are added later to multiplex the variety as we can’t figure out exactly how the Arduino handles to drive all forty of them as shown. One thing we are sure about, the completed job looks as well as seems amazing!