Initial prof of concept prototype created using a cam wheel like the kind you would find on a shopping cart.
a printed rubber wheel on a paper clip
prototypes testing various types of wheels using off the shelf markers
Breakthrough! - First scaled prototype incorporating a cam wheel in a spinning housing.
in exploration to create a ball point version, several mini soccer-ball like prototypes were created.
More ball prototypes inspired by golf balls and geodesic domes.
The evolution of dot pen prototypes
Final working prototype
close up of final prototype and its results
design iterations
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DITTO. Dot Pattern Pen
Ditto is a pen which creates a dotted line pattern. It's roller wheel nib is housed snugly in a spinning head, which makes writing cursive letters or drawing perfect dotted curves a breeze. It allows teachers to easily create custom text for students to trace over. Designed for Quirky Inc.
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