Mise en place de votre premier projet – Guide technique complet

Introduction

This guide walks you through every step of setting up TinkerCAD, creating your first project, and understanding the interface. Whether you're an educator setting up a classroom or a student starting your 3D design journey, you'll be designing within 10 minutes.

Step 1: Account Setup & Authentication

Creating Your Account

1. Visit tinkercad.com and click Sign Up
2. Choose your account type: Personal, Educator, or Student
3. Complete OAuth 2.0 authentication (Google, Microsoft, or email)
4. Verify your email address

For Educators: Setting Up Classrooms

TinkerCAD's classroom feature lets you manage up to 50 students per classroom:

1. Log in and navigate to Classrooms
2. Click Create Classroom
3. Name your classroom (e.g., "Grade 9 Engineering – Fall 2025")
4. Set grade level and subject
5. Share the classroom code with students
6. Students join using the code—no email required

Pro Tip: Create separate classrooms for different grade levels or projects. This keeps student work organised and makes assessment easier.

Step 2: Understanding the Interface

The Main Workspace

When you create a new design, you'll see five key areas:

• Toolbar (Top): File operations, view controls, shape library access
• Shape Library (Left): All available shapes and objects
• Canvas (Center): Your 3D workspace where designs take shape
• Properties Panel (Right): Dimensions, positioning, and object properties
• Bottom Status Bar: Grid settings, view mode, export options

Navigation Controls

Action	Control	Purpose
Rotate View	Middle Mouse Button + Drag	Change viewing angle
Pan View	Right Mouse Button + Drag	Move canvas position
Zoom	Scroll Wheel	Enlarge or reduce view
Select Object	Left Click	Choose shape to edit
Fit to View	Press 'V'	Auto-center all objects

Step 3: Creating Your First Shape

Adding a Shape

1. Click the Shape Library on the left
2. Select a basic shape (e.g., Cube)
3. Click on the canvas to place it
4. The shape appears with selection handles (small squares at corners)
5. Understanding Selection Handles

When a shape is selected, you'll see:

• Corner handles: Resize the shape proportionally
• Edge handles: Resize along one dimension only
• Center point: Drag to move the shape
• Rotation ring: Rotate the shape in 3D space

Step 4: Precise Dimensioning

TinkerCAD's real power lies in precise control. Instead of dragging shapes, use the Properties Panel to set exact dimensions.

Setting Dimensions

1. Select a shape
2. Look at the Properties Panel on the right
3. You'll see three fields: X, Y, Z (dimensions) and Position fields
4. Click any field and type a value (in millimetres)
5. Press Enter to apply

Positioning Formula

Objects are positioned from their center point. To place a 10mm cube at the origin (0,0,0):

• X Position: 5mm (half the width)
• Y Position: 5mm (half the depth)
• Z Position: 5mm (half the height)

This ensures the corner aligns with the grid origin, making assembly easier.

Step 5: Working with Multiple Objects

Grouping Objects

Once you've created multiple shapes, group them to move and rotate them together:

1. Select the first object (click it)
2. Hold Shift and click additional objects
3. Press Ctrl+G (or Cmd+G on Mac) to group
4. The group moves and rotates as a single unit

Ungrouping

To edit individual shapes within a group, select the group and press Ctrl+Shift+G to ungroup.

Common Mistakes & Solutions

Problem	Cause	Solution
Shape disappears	Moved below the workplane	Check Z position; ensure it's above 0
Can't select an object	Hidden behind another shape	Rotate view or temporarily move the blocking shape
Dimensions won't change	Locked shape	Right-click and select "Unlock"
View is zoomed too far	Accidental scroll	Press 'V' to fit all objects in view

Multi-Object Workflow: A Practical Example

Let's create a simple assembly: a base platform with a vertical post.

Step-by-Step

1. Create Base: Add a cube, set dimensions to 50mm × 50mm × 5mm
2. Create Post: Add another cube, set dimensions to 10mm × 10mm × 30mm
3. Position Post: Set X=20mm, Y=20mm, Z=7.5mm (sitting on top of base)
4. Group Together: Select both, press Ctrl+G
5. View Result: Press 'V' to see the complete assembly

Now you have a reusable assembly. You can duplicate this group and create more complex structures.

Exporting Your First Design

Ready to 3D print? Here's how to export:

1. Click the Export button (top toolbar)
2. Choose STL format (standard for 3D printing)
3. Name your file
4. Click Download

Your design is now ready to slice and print using software like Cura or PrusaSlicer.

Key Takeaways

• Account setup takes 2 minutes; classroom setup adds educator features
• Master the interface: toolbar, library, canvas, and properties panel
• Use precise dimensions instead of dragging for professional results
• Group objects to manage complex assemblies
• Export to STL for 3D printing

Next in the series: Mastering Shapes & Combinations – Creating Functional Designs