Glossary15 January 2026 · 1 min read

Pen

Pen refers to the machine's format: a cylindrical, pen-like body held as one. It describes the shape, not the internal mechanism: most pens are rotary and use cartridges, but the name alone does not establish that.

Why it matters: The shape affects grip, balance and perceived weight. To understand how a pen works, look at its type of motor and power.

Related: Rotary, Wireless, Grip, Balance.

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