Book Image

Blender 3D Printing by Example

By : Vicky Somma

5 (1)

Book Image

Blender 3D Printing by Example

5 (1)

By: Vicky Somma

Overview of this book

Blender is an open-source modeling and animation program popular in the 3D printing community. 3D printing brings along different considerations than animation and virtual reality. This book walks you through four projects to learn using Blender for 3D Printing, giving you information that you need to know to create high-quality 3D printed objects. The book starts with two jewelry projects-- a pendant of a silhouette and a bracelet with custom text. We then explore architectural modeling as you learn to makes a figurine from photos of a home. The final project, a human hand, illustrates how Blender can be used for organic models and how colors can be added to the design. You will learn modeling for 3D printing with the help of these projects. Whether you plan to print at-home or use a service bureau, you’ll start by understanding design requirements. The book begins with simple projects to get you started with 3D modeling basics and the tools available in Blender. As the book progresses, you’ll get exposed to more robust mesh modeling techniques, modifiers, and Blender shortcuts. By the time you reach your final project, you’ll be ready for organic modeling and learning how to add colors. In the final section, you’ll learn how to check for and correct common modeling issues to ensure the 3D printer can make your idea a reality!

Preface

What this book covers

What you need for this book

Who this book is for

Reader feedback

Customer support

Free Chapter

Thinking about Design Requirements

Thinking about Design Requirements

Thinking about printing processes

Thinking about size

Using a Background Image and Bezier Curves

Using a Background Image and Bezier Curves

Getting started

Adding a background image

Tracing with Bezier curves

Converting a Bezier Curve to a Properly Sized 3D Mesh

Converting a Bezier Curve to a Properly Sized 3D Mesh

Converting a Bezier curve into a mesh

Selecting vertices and making a new face

Extruding to make 3D objects

Scaling and sizing the mesh

Flattening a Torus and Boolean Union

Flattening a Torus and Boolean Union

Creating and laying out a torus

Rotating the torus (for Service Bureau)

Giving the torus a flat bottom (for home)

Combining objects together with Boolean Union

Exporting your work for 3D printing

Building a Base with Standard Meshes and a Mirror

Building a Base with Standard Meshes and a Mirror

Working with a cube and cylinder

Using Object Origins to line up objects

Making the base whole

Cutting Half Circle Holes and Modifier Management

Cutting Half Circle Holes and Modifier Management

Duplicating and sizing a cylinder

Placing the hole and preserving wall thicknesses

Mesh modeling to make a half cylinder

Making a hole with Boolean difference

Changing your object with modifier order

Customizing with Text

Customizing with Text

Adding a new text object

Changing font settings

Converting the text to a 3D mesh

Finalizing the bracelet

Using Empties to Model the Base of the House

Using Empties to Model the Base of the House

Using Empties for reference images

Modeling the base of the house

Mesh Modeling and Positioning the Details

Mesh Modeling and Positioning the Details

Modeling windows

Renaming and copying windows

Perfecting the positioning with Snap

Making Textures with the Array Modifier and Scalable Vector Graphics

Making Textures with the Array Modifier and Scalable Vector Graphics

Making brickwork with the Array Modifier

Importing a Scalable Vector Graphics file for stonework

Applying Textures with Boolean Intersection

Applying Textures with Boolean Intersection

Making template shapes

Taking an intersection

Finalizing and exporting the house

Making Organic Shapes with the Subdivision Surface Modifier

Making Organic Shapes with the Subdivision Surface Modifier

Thinking about overhangs and flat bases

Making a low-poly hand

Adding a Subdivision Surface Modifier

Trial and Error – Topology Edits

Trial and Error – Topology Edits

Preparing yourself mentally

Adding extra edge loops

Moving vertices and edge loops

Modeling fingernails and wrinkles

Coloring Models with Materials and UV Maps

Coloring Models with Materials and UV Maps

Using materials

Coloring with UV Maps

Exporting and uploading X3D files

Troubleshooting and Repairing Models

Troubleshooting and Repairing Models

Removing duplicate vertices

Flipping face normals

Finding and fixing non-manifold edges

Repairing models with 3D Builder

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Changing your object with modifier order

Once our half cylinder is hidden, we can see the hole in the left-hand side of our bracelet plate. The right-hand side, however, is still completely solid:

The base with just a single hole.

This is due to the order of the modifiers, the Modifier Stack. Blender applies the modifiers from top to bottom, as they are listed in the Properties window. In the case of our bracelet base, Blender currently does the following:

Combines the cylinder and the cube to make a rounded half base
Mirrors the rounded half base to make a full base
Subtracts the half cylinder to make a hole

Modifiers are applied in order from top to bottom

The Mirror Modifier cannot copy a hole which is yet to exist. Changing the order of the Modifier Stack can produce very different objects. Suppose we put the Mirror Modifier last. The Union is applied, giving our base...