Tinkercad: The Browser Beginner

easy

Learn with your AI

Pick a depth. Each prompt opens in your AI pre-loaded with the lesson. Click a row to preview the prompt.

Or teach me the whole lesson:

Why this matters

Tinkercad is the easiest entry into CAD: browser-based, primitive-driven, no parametric complexity. It can't make every part — but it can make a surprising amount with zero learning curve. If you're starting today, this is where you start.

Demo

Tinkercad's core abstractions.

Try it yourself

Create a Tinkercad account (free). Design a simple keychain in 10 minutes.
Try the 'hole' feature: place a cylinder hole inside a box to make a cup.
Export your design as STL. Verify the file opens in your slicer.

References

WHAT TINKERCAD IS: Free browser-based CAD by Autodesk. Primitive-driven: drag a shape, scale, rotate, position. Add a hole shape (red) to subtract from solid shape (blue). CORE PRIMITIVES: Box: 6 sides; can be scaled non-uniformly. Cylinder: circular; height + radius controllable. Sphere: 3D bubble; control segments. Polygon: prism with N sides. Cone, Pyramid, Wedge: common geometric forms. Text: 2D extrudable text in any font. Imported shapes: STL upload becomes editable. THE TWO COLORS: Solid (blue): adds material when grouped. Hole (red): subtracts material when grouped. GROUPING: Select multiple shapes. Press Ctrl+G. Result: a combined shape (union or difference depending on solid/hole status). Once grouped, you can't un-group easily. Plan before grouping. ALIGN AND SCALE: Alignment tool: snap shapes to centers, edges, faces. Scale tool: drag handles to resize (non-uniform OK). Numeric input: type dimensions directly for precise sizing. PATTERN AND SCAFFOLDING: Tinkercad: limited compared to Fusion. No 'arrays' built-in. Workaround: duplicate (Ctrl+D) then move precisely. For 5+ copies, use OpenSCAD or Fusion instead. WHEN TINKERCAD WINS: - First CAD design - Quick fix (a bracket; a hole; a custom box) - Educational use (kids, classrooms) - When you need it in 10 minutes, not 1 hour WHEN TINKERCAD LOSES: - Complex curves (no NURBS surfaces) - Sketch-driven parametric design (no sketches) - Assemblies (no joint or motion definition) - Anything requiring exact dimensions throughout (Tinkercad's mesh occasionally rounds) - Reusing designs across projects (no part library) MAJOR LIMITATIONS: - No real parametric capability - Exports STL only (not STEP) - Designs are 'flat' — no hierarchy - Mesh-based; geometry can lose precision UPGRADING FROM TINKERCAD: When you outgrow it (designs feeling cumbersome), graduate to: Fusion 360 (personal license: free for hobbyists) OnShape (free for public-document hobbyists) FreeCAD (open source, requires patience)