A5 Polar Grid Notebook standing closed on a plain surface, composition-style cover with a tiled illustration field and a label plate.

Plain Lab · notebook

Polar Grid Notebook

Concentric rings crossed by radiating lines, spaced 9.17 mm ring to ring, eighteen to the page, for anything plotted by angle and distance rather than x and y.

Price

from Rp 59.000

Softcover, French link sewing. Printed and sewn to order.

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Every cover and binding option is quoted when you order.

Specification

Type: Notebook
Trim: 148 × 210 mm · 5.827 × 8.268 in
Pages: 120
Leaves: 60
Sheets: 30
Signatures: 6 × 20pp
Spine: 6.86 mm
Paper: white
Ruling: polar
Ruling pitch: 9.17 mm · 26.00 pt
Rows per page: 18
Dating: Undated

Build it

CoverBinding

Custom print

Rp 59,000

The page carries no straight grid. Instead the rule runs in rings and spokes: concentric circles spaced 9.17 mm apart, crossed by lines radiating from the centre, eighteen rings to a page. A reading that has a direction and a distance sits on this ruling the way an ordinary point sits on graph paper, without you converting anything first.

It does not print degree marks around the outside or a compass rose in the corner. The rings mark distance from the centre. The spokes mark a bearing, but the angle itself still comes from your instrument, not from a printed scale. The geometry is drawn as vector lines, not a tiled bitmap, so a ring stays a ring at any zoom.

A protractor still does the measuring. The page only holds where the reading lands.

What is inside

Polar pages: 110pp; Concentric rings at 9.17 mm, crossed by radiating spokes, drawn as vector lines.
Reference: 10pp; Conversion tables computed from definitions and emergency numbers checked against two sources.

In every book

The same six pages open every book: your details, who to call, the signs to point at when you have no shared language, and the map. They sit at the front because the moment you need them is not the moment to be flicking through.

This book belongs to: One page for your name and number, so a book that goes missing can come back.
My details: Blood group, allergies, who to call. Written once, carried everywhere.
Emergency numbers: Forty countries, taken from Wikidata property P2852 (CC0), agreed across two sources, every row carrying its QID. Numbers change and a book does not — verify locally on arrival.
Point at this: A pictogram grid captioned in English above and Indonesian below, for when there is no shared language.
World map: Natural Earth 110m, public domain, equirectangular, with UTC hour meridians computed from the projection rather than from a timezone database. For orientation and for pointing at, not a navigation chart.
Conversion tables: Computed from definitions — 25.4 mm to the inch — and not copied from anywhere, so every row can be checked by anyone holding the book.
Pen test leaf: The last page, printed for it on purpose. Every notebook is used this way; printing it deliberately is cheaper than losing the last leaf to it by accident.

The film

Page by page

A vertical film, 52 seconds: the cover, the ruling page, then 5 reference pages. Synthesised ambient bed, no dialogue — captions in three languages.

A vertical film from our own bench — this page contacts nobody's server to play it, and downloads nothing until you press play.

What is inside this book?

Five pages from the Polar Grid Notebook laid out as cards: a polar grid page, a divider, a conversion table, an emergency page, and a sample plotted reading. — Five pages rendered from the print file: a polar-ruled page, a divider, a conversion table, the emergency page, and a page with a sample reading plotted for scale. Every ring and spoke is vector geometry, so the grid holds its shape at any zoom instead of going soft under it.

Specification card for the Polar Grid Notebook listing 110 polar-ruled pages at 9.17 mm, 18 rings per page, 120 pages total, A5 trim. — One hundred and ten pages ruled with concentric rings at 9.17 mm, eighteen to a page, crossed by radiating spokes. Ten pages of reference matter close the book: conversion tables computed from definitions and emergency numbers checked against two independent sources. One hundred and twenty pages total, A5, six sewn signatures of twenty.

Computed from definitions — 25.4 mm to the inch — and not copied from anywhere, so every row can be checked by anyone holding the book. — Polar Grid Notebook — Conversion tables

Forty countries, taken from Wikidata property P2852 (CC0), agreed across two sources, every row carrying its QID. Numbers change and a book does not — verify locally on arrival. — Polar Grid Notebook — Emergency numbers

One page for your name and number, so a book that goes missing can come back. — Polar Grid Notebook — This book belongs to

A pictogram grid captioned in English above and Indonesian below, for when there is no shared language. — Polar Grid Notebook — Point at this

Natural Earth 110m, public domain, equirectangular, with UTC hour meridians computed from the projection rather than from a timezone database. For orientation and for pointing at, not a navigation chart. — Polar Grid Notebook — World map

The PDF of this book.

We do not sell the design or the PDF. Download it free, with no conditions at all, not even tracking. What we sell is the book, a real object that is genuinely useful and can help your life.

Download PDF PDF · 120 pages · 2.7 MB

Made at the Hibrkraft bindery, Bogor · about the maker