Supply Chain Lab

Capacity and operations · live class game

PrintWorks Operations Challenge

Build a 3D printing fleet for a changing order mix. Every credit committed to equipment, materials, labour and quality changes what you can deliver later.

Ready to brief

Your role

Run Melbourne's newest digital manufacturing cell.

You have 180 credits, one FDM printer and six weeks. Read the forecast, choose the right technologies, protect cash and deliver usable parts on time.

How each week works

One connected operations decision.

1
Read the demand range

The class shares the same hidden demand scenario.

2
Commit limited credits

Buy printers, compatible materials, operator time and risk protection.

3
See the constraint

Actual demand, throughput, defects, service and cash are revealed together.

4
Adapt the next week

Your fleet and unused materials carry forward.

Decision week1 / 6
Available cash180 credits
Installed fleet1 printer
Service to dateNot started
Class standingSolo practice

Week result

+0 credits

    Week briefing

    Forecast demand range

    The exact order mix stays hidden until you commit. Forecast ranges are reliable, but not perfect.

    Equipment marketplace

    Printers are purchased now and remain in your fleet for the rest of the challenge.

    FDM

    Best for rapid prototypes and simple functional parts
    Purchase28 creditsCapacity24 / week
    Owned: 1
    0

    Resin / SLA

    Best for detailed, precise and high-finish parts
    Purchase42 creditsCapacity17 / week
    Owned: 0
    0

    SLS

    Best for durable production batches and nested builds
    Purchase68 creditsCapacity36 / week
    Owned: 0
    0

    Weekly operating plan

    Machines need compatible material, operator time and a deliberate risk policy.

    Material packs to order
    FDM filament0 units on hand · 8 credits adds 22
    1
    SLA resin0 units on hand · 12 credits adds 16
    0
    SLS powder0 units on hand · 20 credits adds 34
    0

    Final balanced score

    0/100

    Six-week debrief

    Profitability 40%, service 25%, quality 20%, sustainability 15%.

    WeekDemandGood outputServiceNet creditsClosing cash

    Debrief prompt: Which purchase solved a true constraint, and which purchase only moved the constraint somewhere else?

    About this tool

    The concept

    Additive manufacturing turns capacity planning into a technology-selection problem. FDM, resin and SLS printers serve different order types at very different price points, so the question is never “which printer is best” but which fleet fits the order mix you expect - and the mix changes every week.

    How it works

    Six weeks, 180 starting credits, one FDM printer. Each week you read a demand range per segment, then commit printers (FDM 28 credits for 24 units of capacity, SLA 42 for 17, SLS 68 for 36), compatible materials, operators, maintenance, inspection, overtime and outsourcing before actual demand is revealed. Equipment and unused materials carry forward; a 25-credit emergency facility exists but repays at 8%. The final score weighs profitability 40%, service 25%, quality 20% and sustainability 15%.

    Winning strategy

    Buy capacity one step ahead of the announced mix, never two: an SLS machine in week one earns nothing until batch work arrives, but bought after week three it never repays its 68 credits. Match materials to machines you actually own, keep an operator ahead of your printer count, and move from reactive to preventive maintenance before the audit and peak weeks - a breakdown in week six is the most expensive event in the game.

    Class paused

    Your current decision stays on this device. Continue when the instructor resumes the activity.