Craft LabCraft Lab

Build in public · Day by day

Craft Lab

Franklin & Dad's AI workshop

We are building an Iron Golem named Bolt. Every day is a quest. Every model we train becomes an item in the Chest. Dad learns AI. Franklin crafts with him.

Bolt the Iron Golem

Bolt

6 brain parts crafted

Day 4 Quest

Decision Blade: Inputs, Weights and Bias

Quest: What do three stacks and a bias gem actually mean?

Franklin forges a Decision Blade from Sunny Sword, Homework Bow and Rain Shield, then tests it in the arena.

Open quest →

Mine shaft

4 quests

Redstone Torch

Surface

Neurons, networks, and first crafts.

  1. Day 1

    Crafting Bolt's First Brain Block

    How does a machine learn something?

    Crafting Table

    Achievement: First Craft

  2. Day 2

    Training Golem: One Gradient Step

    How does the furnace know which way to nudge a weight?

    Heart

    Achievement: First Gradient

  3. Day 3

    Furnace Ticks: Train the Neuron by Hand

    Can we train Bolt's whole brain one furnace tick at a time?

    Furnace

    Achievement: Furnace Master

  4. Day 4

    Decision Blade: Inputs, Weights and Bias

    What do three stacks and a bias gem actually mean?

    Emerald

    Achievement: Decision Blade

The Chest

Every trained model is a crafted item.

Open chest →

Chest

Compass
XP Orb
Furnace
Emerald

Play-Outside Compass

Compass

Points toward playing outside. Hates rain. Loves finished homework.

  • Homework Boost I
  • Rain Aversion II

Learning Crystal

XP Orb

Glows brighter as error shrinks. Proof that one weight can learn by walking downhill.

  • Gradient Sight I
  • Learning Rate I
Oak Sign

How this works

  • One hour a day. Dad learns real AI (neurons to transformers to training a language model).
  • Franklin learns too. Every idea is a craft recipe simple enough for a seven-year-old. First name only.
  • Crafting benches on every quest. Twist the blocks yourself in the browser.
  • Real command blocks. The Python that trains the model sits next to the story.