OpenSCAD Tutorial

// Aerospike Rocket Engine - Simple Model

$fn = 100;

// Main chamber

module chamber() {

    scale([1,1,1.5])

    sphere(r=20);

}

// Throat

module throat() {

    translate([0,0,-10])

    cylinder(h=10, r1=8, r2=6);

}

// Exhaust nozzle (outer)

module nozzle() {

    translate([0,0,-40])

    cylinder(h=30, r1=6, r2=12);

}

// Aerospike (center spike)

module spike() {

    translate([0,0,-40])

    cone_height = 40;

    cylinder(h=cone_height, r1=10, r2=0);

}

// Assemble

difference() {

    union() {

        chamber();

        throat();

        nozzle();

    }

    // Hollow center थोड़ा realistic করার জন্য

    translate([0,0,10])

    cylinder(h=80, r=4);

}

// Add spike

spike();

Table of Contents

A printable version of OpenSCAD Tutorial is available. (edit it)

• Introduction
• Chapter 1
  1. A few words about OpenSCAD
  2. Getting started with the Tutorial
  3. Basic information about the OpenSCAD environment
  4. Creating your first object
  5. Creating a slightly different cube
  6. Adding more objects and translating objects
  7. The cylinder primitive and rotating objects
  8. Completing your first model
  9. Creating a second model

• Chapter 2
  1. Scaling parts or the whole model
  2. Quick quiz
  3. Parameterizing parts of your model
  4. Parameterizing more parts of your model
  5. Challenge
  6. Parameterizing your own models

• Chapter 3
  1. The sphere primitive and resizing objects
  2. Combining objects in other ways

• Chapter 4
  1. Defining and using modules
  2. Parameterizing modules
  3. Defining default values of module’s parameters
  4. Separating the whole model into modules

• Chapter 5
  1. Creating and utilizing modules as separate scripts
  2. Using a script with multiple modules
  3. Using the MCAD library
  4. Creating even more parameterizable modules
  5. Challenge

• Chapter 6
  1. OpenSCAD variables
  2. Conditional variable assignment
  3. More conditional variable assignments
  4. Conditional creation of objects – If statement
  5. Challenge

• Chapter 7
  1. Creating repeating patterns of parts/models – For loops
  2. Creating more complex patterns
  3. Challenge
  4. Creating patterns of patterns – Nested for loops

• Chapter 8
  1. Rotationally extruding 3D objects from 2D objects
  2. Challenge
  3. Linearly extruding 3D objects from 2D objects

• Chapter 9
  1. Doing math calculations in OpenSCAD
  2. Creating any 2D object with the polygon primitive
  3. Challenge
  4. Creating more complex object using the polygon primitive and math
  5. Another challenge

Useful links

• OpenSCAD's website
• Download OpenSCAD
• Syntax cheat sheet
• The OpenSCAD Language Manual for use later as a reference.