Yamautomaton, a calligraphic automaton

[Posted on behalf of Yama Ploskonka by rutrohverlord]

This device, designed and built by Robot Group member, Yama Ploskonka, appeared in a cruder form at Maker Faire Austin on May 04, 2019.

The Yamautomaton, a computer-controlled machine originally designed for research in kinesthetics of calligraphy, actually delivers a pretty good hand! Here making a copy of the Canticle of the Creatures, a praise prayer by St.Francis, imitating the hand (font or typeface to y’all) of the oldest manuscript in Italian, c. AD 1270. The machine was built in Austin, Texas, from parts of a homespun CNC originally from 2018. Completing these two sheets of fine calligraphy would take a practiced professional a good couple days. That’s too much work. To save effort, I only spent 6 months building the machine, developing the software, even figuring the right ink-gum-pigments mix. Saving work and time, that’s my motto!

Yama reports that, after just a few months of additional work, the device has now reached ‘production’ reliability.

“I just drop a file with tagged text, and the machine does the rest (of course I have to mother the pen’s ink supply, and set the paper, but that would be the same if doing calligraphy by hand).”

He continues, “I seem to find very few ‘practical’ writing automata out there, seems the concept is a bit abandoned. Yes, of course, essentially it’s just a CNC, conceptually not that much beyond an EggBot, and, yes, it would take just a few rods to transfer the movement to a more humanoid arm and hand. It might be that the actual challenge is then really in the software.”

“The text file goes in as text, including dimensions for the paper, column locations, then coordinates for each stroke in each character come as a CSV spreadsheet. Both get slurped by some Python code (150 lines), that spits out Gcode (for red, gold, black), and on to the CNC.”

Future developments include another attempt at Chinese writing.

“It proved too complicated, so I did a ‘step back to better jump’ by going first to Blackletter (Fraktur, like Gutenberg font), then to this medieval hand. That did help me figure out and pass several limitations that my software and conceptualization had, so I feel more ready now for what is probably still the most complex writing system in use, Chinese. As a fringe benefit, the code is more able to be ‘universal’ … potentially being able to deliver any hand that has been compiled.”

The Yamautomaton (likely a tentative name) is able to travel. If y’all have a venue, please speak up.

Author: rutrohverlord

I am, by nature, a creature of the web. My daytime vision is excellent although I prefer to roam, far and wide, under the cover of darkness. Nightcrawler, woodsmith, metalsmith, scientist / engineer.