The flexible-nib calligraphy pen is mounted on a sprocket which rotates the tip onto the writing surface, taking care of the third axis. The rig was beautifully rendered from their CAD drawings ...
I use its Marker in calligraphy pen mode, which has an aesthetic appeal even the mighty iPad can't match. Plus, the older I get the more I feel the joy of e-ink, tech's most soothing alternative ...