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Image: reddit.com · Video still: i asked Fable to make a JavaScript sketchbook, then sent it back onto paper with a robot arm

Worked Proof shown

A robot arm draws a generated face on a postcard

Claude wrote a JavaScript face generator, then Codex planned and ran the pen strokes on a UFactory xArm 7 to draw it on a postcard.

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Credits

  • Reddit poster dhvanil Source ↗

Earliest dated source: 21 Aug 2026

The full story

Claude was shown coded face studies by another artist and wrote a JavaScript generator with modular eyes, noses and mouths on a rough 3D head, with deliberate drift, overshoot and retracing. The poster chose the seed and composition and exported black and pink layers as SVGs.

Codex handled the physical side: registering the 105 x 155 mm postcard and its magnets, calibrating two pens, checking every path and running the drawing on a UFactory xArm 7. The finished postcard has 327 pen strokes.

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: i asked Fable to make a JavaScript sketchbook, then sent it back onto paper with a robot armForum threadreddit.com
    Reddit poster: dhvanilPosted 21 Aug 2026

    The maker's post on r/ClaudeCode.

    If it disappears: archived copy of Reddit: i asked Fable to make a JavaScript sketchbook, then sent it back onto paper with a robot arm (opens in a new tab)

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