Before you start
Think it through first
Most popular
Print Lab Size up a 3D-printed part — overhangs, bridges, bed grip — and predict: clean, needs support, or warps? 
Circuit Bench Read a little circuit, predict what happens, then run it and trace the whole loop with your finger. 
Concept Kits 16 kits · 400 questions across the design process, materials, circuits, and fabrication. 
Maker Quest A progression path through all 16 kits — clear each stop, then move on. 🛠️ Mill's workshop rule
All activities
Design & build
Learn & practice
Concept Kits 16 quiz kits · 400 questions on the design process, materials, circuits, and fabrication — a hint after a first miss, an explanation every time. Mixed practice A short round that shuffles the kits you have played, resurfaced when they are ready to review. MakerForge Sprint Race your OWN best on what you already know. Timer optional, no penalty for a miss. Trick Questions Brain-teasers with a twist — spot why the obvious build choice is a trap. Teach the Cast Teach a maker idea to a cast member still learning it — teaching makes it stick. Progress Your levels, streak, and how each skill area is coming along — saved on this device.
Play together
For grown-ups — progress report →
More ways to play
😄 Brain break
Meet the cast — the characters who teach this
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Sketch Ideation + concept development — the wild-thinking squirrel-tween who treats divergent brainstorming as judgment-free play ('many before few; wild before tame; crooked sketches are also sketches') -
Spec Material + constraint commitment — the measured owl-tween who treats spec-commitment as the moment imagination meets physics ('constraints are the shape of the possible') -
Mill Fabrication + build — the careful beaver-tween who carries the cluster's tool-safety anchor ('tool first checked, adult first told — then we build') -
Try Prototyping + iteration — the patient salamander-tween who treats first failure as expected design-process behavior ('first try fails, second try tells, third try shapes the design') -
Log Documentation + reflection — the wise turtle-elder who treats the notebook as the actual deliverable ('make it, mark it, share it — the notebook is the project') -
Behalf Empathize — human-centered-design posture (start with the person's real need, not your idea; who is this for?) -
Caliper Precision — measure-twice-cut-once posture (a small error at the start grows into a big one; check before you commit) -
Glean Salvage & reuse — treasure-in-the-scrap posture (the best material is often the one you already have; see what a thing could become) -
Nail Define — frame-the-real-problem posture (a good question is half the solution; solve the actual problem, not the first one you notice) -
Regard Test — watch-real-users posture (what someone DOES with your thing is the truth; set it in their hands and observe, don't just ask)
Ensemble stories — the cast together