Blender for Beginners: How to Import & Precisely Resize STL Files (Using Millimeters)
Blender for Beginners: How to Import & Precisely Resize STL Files (Using Millimeters)
In this beginner-friendly Blender 3D tutorial, learn how to import a 3D file (STL) and resize it to an exact measurement using millimeters. Whether you're preparing a model for 3D printing, product design, or accurate scaling, this step-by-step guide walks you through everything you need to know — no experience required!
⭐ What You’ll Learn
How to set Blender’s unit system to millimeters
How to adjust the unit scale for accurate dimensions
How to make Blender remember these settings (Save Startup File)
How to import STL files correctly
How to resize models using precise dimensions
How to keep objects in proportion while scaling
How to apply scale for clean exporting and 3D printing
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