Build manual · engine

Every spec.
Every check.
Every format.

Built for the systems that have to hold up — auditable, restricted-keyway, handover-ready, and exportable to whatever cuts your keys.

35
restricted profiles
8
build phases
8
safety validations
5/3
export · import formats
At a glance

Six chapters. Skip to anything.

Engine

8-phase build pipeline · Monte Carlo TMK · RCM allocation.

Hierarchy

GGMK → GMK → MK → SK · CMK · Maison · KA / KD · Selective Keys.

Validation

8 safety checks per pin stack · exhaustive phantom scan.

Library

35 restricted profiles · 13 lock bodies · 11 cylinder types · custom in 5 min.

Interchange

.ick / .gcd / .skd / .csv / Lishi out · .ick / .gcd / .skd back in.

Operations

Customer DB · key register · handover signatures · cross-system dupes.
01
Pipeline

Eight passes from input to ready-to-cut.

Up to 2,000 TMK candidates scored per build via Monte Carlo sampling with a seeded RNG — same input, same system, every time. The Rotating Constant Method handles allocation; the optimiser refines it.

  1. Validate input

    Door / area / master / group consistency before anything else runs.

  2. Build KBA

    Keyed bitting array — every key the system will eventually emit.

  3. Allocate SOP

    Standard Operating Pin per cylinder, per chamber.

  4. Assign masters

    Walk the hierarchy and tag every change key with its master(s).

  5. Generate RCM keys

    Rotating Constant Method — phantom-light by construction.

  6. Compute pin stacks

    Bottom · master · driver per chamber, per cylinder.

  7. Detect phantoms

    Walk the access matrix; flag every unauthorised opener.

  8. Validate stacks

    Eight checks (next section). System is graded A through D.

02
Allocation

From great grand master to selective key.

Up to 4 tiers

GGMK → GMK → MK → SK. Walks any depth your spec needs.

Construction Master

Toggle on; computed separately. Invalidates at handover.

Common-area keys

Doors marked maison auto-share across leaf masters.

Access · Denial

Selective scope — share or restrict between groups.

Selective Keys

Emergency, maintenance, restricted-scope override keys.

03
Validated

Eight checks. Every pin stack, every cylinder.

  • CRITICAL Zero-height master pin Master and change key share a depth — no security separation.
  • WARN Thin master disc Below configurable minimum (default 2). Discs jam in the chamber.
  • WARN Adjacent depth repeats Same depth in consecutive positions. Easier to decode.
  • WARN Chamber overflow Position shared by too many keys. Picking resistance drops.
  • REQ MACS adherence Adjacent-cut difference within factory spec, every key.
  • QUAL Depth variety Penalty when unique depths fall below 34% of pin length.
  • QUAL Depth spread Penalty when max minus min collapses below 2 steps.
  • QUAL Boundary minimum Lowest pin sits at least one step above profile floor.
04
Profiles & hardware

35 restricted profiles. Region-tested.

Every blank ships with factory depth specs, MACS, and DSD card mappings for both Silca and HPC machine cards. Add custom profiles for in-house keyways in minutes — the engine treats them as first-class. Browse all 35 lock profiles with their per-profile pages.

AU / NZ 6

Lockwood 570 (6 + 7-pin), Lockwood 530, Lockwood 001 Twin, DOM ix, Bravo ECO

US / CA 16

Schlage C / Primus, BEST A2 SFIC, Corbin Russwin 60 / 59, Sargent LA, Yale 8, Medeco Original, Kwikset KW1, Arrow AR1, Weiser WR5

EU / UK 10

ASSA Twin 6000, ABLOY Classic, EVVA EPS, Kaba Penta, Mul-T-Lock Classic, Winkhaus RPE, CES WM5, ISEO R6, Zeiss Ikon

Generic 3

Universal 5-pin, 6-pin, 7-pin blanks (depths 0–9)

Per-door hardware

13 lock bodies · 11 cylinder types

  • Backset (60 / 70 / 89 / 127 mm)
  • Handing (LH · RH · LHR · RHR)
  • Fire rating (-/60/30 → -/120/60)
  • Closer / Hold-Open
  • Strike type (Standard · Electric · Mag · DDA)
05
Interchange

Five formats out. Three back in.

Round-trip is rare in this market — most software exports and forgets. Keyzee can ingest existing systems from .ick / .gcd / .skd and seed a new build from them.

Export
  • .ick InstaCode Live Silca Futura · Edge · Auto · InstaCode Desktop
  • .gcd Genericode HPC CodeMax · Framon · MasterKing
  • .skd Silca Key Data Silca Futura Pro / Edge / Auto (XML)
  • .csv Plain export Universal · formula-injection safe
  • .txt Lishi pinning 40-char ASCII for workshop label printers
Import 2 MB max
  • .ick InstaCode reverse parser
  • .gcd Genericode reverse parser
  • .skd Silca XML parser
06
Operations

Around the bench. Around the customer.

Key register

Issued, returned, holder, copies, dates — per customer.

Customer database

Contact, billing, ABN, address, site notes, service log.

Printable pinning cards

Lishi-format ASCII. One per cylinder. Workshop-ready.

Signature capture

Recipient + locksmith pads. PNG embedded for chain-of-custody.

Soft-delete + 30-day Trash

Recover anything for 30 days. Then purged.

Duplicate scan

Find phantoms across every system in the workspace.

  • Multi-seat workspaces (up to 25 in Team)
  • Roles · Owner / Admin / Tech
  • Per-system activity log
  • 30-min idle session timeout
  • Scheduled account deletion + grace period

Stop hand-charting systems.
Start cutting them.

Full Pro, unlocked for 30 days. No card. No contract. No onboarding call unless you ask for one.

Start 30-day free trial See pricing
Setup in 60 seconds Sample project included Cancel anytime