Vol. 01 · A logbook for pinball

Every machine
keeps a history.
Yours should be
written down.

A maintenance journal, ownership ledger, and shop-manual library for collectors who actually open the coin door. Built by people who own machines, for people who maintain them.

Free
Always
No app
Works in your browser
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Export anytime
POP · LFLIPPER · L
Fig. 01 — Medieval Madness, Williams 1997Last serviced · 2 days ago
Logbook entry · Apr 24
Rebuilt all four flipper assemblies
Coil sleeves, plunger links, EOS · 2.5 hr
● Built by collectors, for collectorsOne book per machineYours when you buy · theirs when you sellFree, forever
Chapter 01
An anatomy

What lives inside a record.

One page per machine — annotated below, like a watch movement diagram.

RECORD № 00042 ⓐ
The Pinlog Record

Medieval
Madness

Williams Electronic Games · 1997 · WPC-95
Serial
WPC95-42187
Acquired
Jan 2022
ROM
L-8
Logged hours
847
Owners
3 verified
Status
On route
Recent service
Apr 24Rebuilt all flipper assembliesM.T.
Apr 11GI bulb refresh, upper playfieldM.T.
Mar 30Mill Wax · two coatsM.T.
Feb 18Replaced trough opto boardTilt Repair Co.
Provenance
Marcus T. · Portland · 2022—now
Sarah K. · Austin · 2018—22
Arcade World · Chicago · 2015—18
Mods on record
Mezel · castle gate light kit
Cliffy · shooter lane protector
Comet · 2SMD warm white GI
ⓐ
Permanent record number
Stable across every owner, like a VIN. Print it on the QR tag inside the coin door.
ⓑ
Title block
Auto-pulled from a community catalog of 11,000+ machines. Edit if your cab is a one-off.
ⓒ
The spec block
Six fields you'll fill once and never touch again. Log hours manually alongside each service entry.
ⓓ
The maintenance log
Every service, tagged by category, signed by owner or shop. Filterable and searchable.
ⓔ
Provenance & mods
Verified ownership chain on the left. Every mod that's ever been bolted in on the right — including the ones the previous owner forgot to mention.
Chapter 02
The kit

Four tools you'll actually open the laptop for.

01 — The maintenance log

A timestamped journal for every machine you own.

Rubber rebuilds, board mods, ROM swaps, the time you found a screw rolling around in the cabinet. Tagged, attached, searchable.

2026·04·24
Rebuilt all four flipper assemblies
Coil sleeves, plunger links, EOS · 2.5 hr
MECHANICAL
2026·04·11
Replaced GI bulbs in upper playfield
Comet 2SMD frosted, warm white
ELECTRICAL
2026·03·30
Waxed playfield, Mill Wax · two coats
No paint chipping · next: 2026·06
PREVENTIVE
02 — Provenance

A verified chain of custody, like a watch's papers.

When you sell, pass the logbook with the machine. Every owner, every service, every mod — signed off.

03 — Manual library

An expert who's read every service manual.

A chatbot trained on the manuals for your specific machine — wired to your serial, your ROM revision. In private beta.

04 — QR shop tags

A printed tag inside the coin door. One scan opens the logbook.

For your shop tech, your buddy borrowing the cab, or you at 11pm with a flashlight. No login, no app — just the record.

Tag № 042
Medieval Madness
WMS · 1997 · S/N 42187
Print on adhesive stock · mount inside the cabinet
Scan to open the logbook
Chapter 03 · PinFax
Carfax for pinball

You bought it. Inherit the history.

Sales happen on Pinside, Facebook, in driveways. The seller hands you a one-page PinFax PDF with a claim code. You enter the code — the entire history is yours, and so is the rest of Pinlog.

i. The seller issues a PinFax
— one PDF, one code
PinFax transfer certificate
№ 042 · APR 2026
Machine
Medieval Madness
Williams, 1997 · S/N WPC-89-42187
From
Sarah K. · Austin, TX
Service entries
47 since 2018
Claim code
PNLG-MM7K-4218
Single use · expires 30 days · enter at pinlog/claim
Issued by Sarah K. — owner consent recorded.p. 1 / 1
ii. You enter the code
— takes about ten seconds

Claim a machine

Paste the code from the PinFax PDF the seller emailed you.

CodePNLG-MM7K-4218✓ valid
Claim Medieval Madness
When you claim, you get: the full PinFax history, the ownership chain, every mod and service entry — and the rest of Pinlog: a logbook for your own service work, the manuals, and the table-trained chatbot.
No PinFax came with the cabinet you bought?
Start a fresh logbook under your name and begin the history from today. About four minutes.
Start a fresh book →
Why this matters

A pinball machine without a logbook is just a story you have to take on trust.

When you buy a watch, the papers add 30%. When you buy a car, the service book adds half. Pinball is the last serious hobby where six-figure machines change hands on a forum DM and a “trust me, bro.”

Pinlog is the receipt drawer. Free. Permanent. Yours.

“Sold a Twilight Zone last spring. The buyer came down four hundred because I couldn't prove when the playfield was swapped.”
— D. Halper · 14 machines · Rochester, NY
COIN DOOR · OPENMill Wax8 OZApr 24, 2026— Rebuilt L flipper— New coil sleeves x6— EOS gap reset— Plunger links replaced2.5 hr · feels new again— M.T.
Fig. 02 — A workbench, mid-rebuild
The invitation

Open the coin door.
Start the book.

Free, forever. About four minutes to set up your first machine.