I am sorry, but I did not take enough pictures, and in general, I am not sure if I could communicate how this device was built. I have included for you every part that I 3-d printed, as well as the .blend file, which contains a scale model of the typewriter, and all of the printed components in their functional positions. I do believe you would be able to reverse engineer the device by examining the .blend file. However, if their is interest, then I will do my best to draft a step by step set of build instructions.

Some notes: The 3D parts with a letter in their title (S-gear.stl for example) correspond to the letter on the typewriter with which that part interacts. The exceptions are the parts with "L" or "R" in the title...those correspond with "Left" or "Right".

Also note: "I-gear" and similar parts have two teeth side by side, but I ended up reducing that (with a saw) to one.

To type out the word three people (or an individual with long arms) must use the two word handles, and the space bar presser with specific timing. The correct timing is as follows: Type 2 letters with the right handle, space bar, type one letter with the right handle, one letter with the left, space bar, type two letters with the left handle, space bar, and repeat.

These openscad scripts were used: thingiverse.com/thing:3575
thingiverse.com/thing:5505 I have attached to this thing my (slightly) modified versions of the above scripts.

sidenote: after re-reading these instructions...I don't see how any most of it will make sense to anybody.....here is my apology in Red Dwarf form: youtu.be/ns4kgvOzopI?t=6m56s