Workshop blueprint / LOG-11

Sensor Airlock Door - Controlled Entry

A two-door entry that uses separate Sensors and interlock logic so one door closes before the other is allowed to open.

Advanced45–70 minutes1 mechanicVersion 1.0

Choose this build when

Controlled workshop or farm entry
Learning Sensor range and interlocks
Areas where both doors are protected from direct raid damage

Choose another approach when

A simple two-Button door solves the problem
Sensor sight lines include unrelated traffic
There is no manual release for a trapped player

01 / Size the job

Workshop baseline

Use these dimensions and targets for the first working version. They are a practical starting layout, not a fixed in-game preset; adjust them only after the baseline passes its tests.

Plan the craftable parts →

01Chamber: 4 × 6 blocks minimum
02Doors: 2 Piston sliding panels
03Sensors: 2, one per approach
04Interlock: 3 Logic Gates
05Manual release: Button inside chamber
06Safe default: Both doors closed

02 / Prepare the bench

Part manifest

The quantities below describe one baseline build. Optional parts are marked so you can prove the working system before spending on lighting, storage, or automation.

PartQtyJob in this buildPriority

Metal Block Level 2× 56

Chamber, guides, and door panels

Required

Piston Level 1× 2

Independent door movement

Required

Sensor Level 1× 2

Outside and inside approach detection

Required

Logic Gate× 3

Requests and mutual exclusion

Required

Controller Level 1× 1

Optional close-then-open timing

Required

Button× 2

Chamber release and maintenance test

Required

Switch× 1

Automation disable

Required

03 / Count before crafting

Direct crafting cost

This total multiplies each listed part by its preferred Craftbot or Mechanic Station recipe. Processed materials and block recipes are shown as direct inputs instead of being expanded into every earlier production step.

Craftable part types: 7/7
Station time: 2m 20s
Input types: 8

Recalculate in the Crafting Planner →

Combined direct inputsLOG-11

Metal Block Level 1× 133

Ember× 24

Metal Block Level 2× 20

56 neededMetal Block Level 2

Craftbot6 batches · 1mAvailable from the start

Metal Block Level 1 × 120Ember × 24Water × 6

2 neededPiston Level 1

Craftbot2 batches · 20sQuest or Farmer task

Metal Block Level 2 × 20Component Kit × 2Circuit Board × 2

2 neededSensor Level 1

Craftbot2 batches · 20sTrader recipe offer

Metal Block Level 1 × 2Glass Block × 2Component Kit × 2Circuit Board × 6

3 neededLogic Gate

Craftbot3 batches · 15sTrader recipe offer

Metal Block Level 1 × 3Circuit Board × 3Glue × 3

1 neededController Level 1

Craftbot1 batch · 10sAvailable from the start

Metal Block Level 1 × 5Component Kit × 1Circuit Board × 5Glue × 1

2 neededButton

Craftbot2 batches · 10sAvailable from the start

Metal Block Level 1 × 2Circuit Board × 2

1 neededSwitch

Craftbot1 batch · 5sAvailable from the start

Metal Block Level 1 × 1Circuit Board × 1

04 / Build in testable systems

Construction sequence

Do not place the next system until the checkpoint under the current stage is true. That keeps steering, motion, power, and storage failures separate.

Stage goal

Build two manual doors

Prove both mechanisms independently before automation.

Build two sliding panels with separate Pistons.
Use temporary Switches to test each door.
Set physical open and closed stops.

Stage goal

Aim the Sensors

Detect the intended approach without seeing through the chamber.

Place one Sensor outside each door.
Reduce or position range so unrelated movement is excluded.
Test at the edge of both detection zones.

Stage goal

Build the interlock

Block one open request while the opposite door is open.

Route each request through its own logic path.
Use the opposite door state as an inhibit condition.
Keep the final outputs visually separate.

Stage goal

Add manual recovery

Let a mechanic exit after a Sensor or logic fault.

Place a release Button inside the chamber.
Add an automation-disable Switch outside the crush zone.
Test recovery with each Sensor disconnected in turn.

05 / Use the right tool at the right moment

Workshop tools

Each tool below has a specific job in this build. Finish that job, then move to the next stage instead of wiring and tuning everything at once.

Logic commissioning

Connect Tool

Traces each Sensor request, interlock, door output, and manual release.

Debugging

Paint Tool

Assigns distinct colors to outer request, inner request, lock, and outputs.

Mechanical prototype

Lift

Builds and tests each door panel before chamber installation.

06 / Check every signal

Connection map

Read each row from input to output. Name or color the physical controls to match this map before closing the bodywork.

Outer SensorEntry request

Outer request logicApproach range only

Inner SensorExit request

Inner request logicApproach range only

Interlock gatesOne door at a time

Door Pistons / ControllerMutual exclusion

Release ButtonChamber recovery

Safe door outputManual momentary path

07 / Commission the build

Test bench

Run these checks with the normal load fitted. If one fails, make the listed physical change and repeat that same test before changing another variable.

TestPass conditionIf it fails

Both Sensors active

At most one door opens

Fix the interlock before adding timing

Sensor edge

Passing traffic does not trigger the opposite door

Re-aim or reduce detection range

Disconnected Sensor

Manual release still exits the chamber

Create a direct protected recovery path

08 / Adapt after it works