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Research draft

pen

vr.tr.pen · PHY.OBJ

Let an agent handle pens by type, ink, tip, use and care.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle pens by type, ink, tip, use and care.

A handheld instrument for writing or drawing with ink, such as a ballpoint, fountain, gel, rollerball, felt-tip, glass or bamboo pen, including erasable and 3D pens.

What it is for: Writing, drawing, signing and marking.

It can be write and draw; choose ink for permanence; refill or replace cartridges; clean fountain pens.

Distinguishing features

Ink-based writing instrument

Many tip systems

Ink permanence varies

Erasable inks are heat-sensitive

What it looks like

A slender barrel with a tip that delivers ink.

Physical character

ballpoint tip diameter: 0.3-1.6 mm - fine to broad

How it is recognised

Tip type: ball, nib, felt or fibre

Refill or cartridge

3D pens extrude plastic, not ink

Related models

is a kind of - category

writing implement

uses - material

ink

is related to - writing tool

pencil

is confused with - another sense

animal pen (enclosure)

In practice

Families and kinds

ballpoint pens

fountain pens

gel and rollerball pens

felt-tip and markers

dip, glass and bamboo pens

3D pens

Standards and regulation

ISO 12757 ballpoint pens

ISO 11540 cap safety to reduce choking risk

ISO 12757-2 document use inks

Failure modes and hazards

Choking on caps

Erasable ink on legal documents

Leaks on flights

Also called

ruling pen3DoodlerFRIXIONbamboo penglass penballpoint penfountain pendrawing peneraser penDotting penSwadeshi RatnamsonErasermatemarker penCounter pendemonstrator penDr. GripGOPENSarasaJETSTREAMSurariHI-TEC-CLiesbicgel pen4 colours BIC ballpoint penKroneMoonman M2Parker 51dotted-line drawing penbingo dabberSign PENCD Markerwhiteboard markerpermanent markerpaint marker

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.pen-animal

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Type Which pen.

Type decides writing.

Tip

Ball, nib, felt.

Tip

Tip type.

  1. What tip system does it use? definition
  2. What line width? measurement

Ink

Ink type.

Ink

Ink.

  1. What ink does it use? definition
  2. Is it permanent and document-proof? boundary
Use Writing.

Use decides choice.

Purpose

Task.

Purpose

Purpose.

  1. What is it used for: signing, drawing, marking? definition
  2. Is it suitable for legal documents? boundary

Ergonomics

Comfort.

Ergonomics

Ergonomics.

  1. Is it comfortable for long writing? boundary
  2. Are adapted pens available? action
Care Maintenance.

Pens need care.

Refill

Cartridges.

Refill

Refills.

  1. Which refill fits? definition
  2. Where can it be bought? action

Cleaning

Fountain pens.

Cleaning

Cleaning.

  1. How should it be cleaned? action
  2. How often? measurement
Safety Children and travel.

Small parts matter.

Caps

Choking.

Caps

Cap safety.

  1. Does the cap meet choking-safety standards? boundary
  2. Is it suitable for young children? boundary

Travel

Pressure.

Travel

Air travel.

  1. Will it leak on a flight? boundary
  2. How can leaks be prevented? action

What the second pass must settle

  • Should pen types be separate entries?
  • How should ink permanence be recorded?
  • How should the enclosure sense be split off?
Draft as JSON