Lesson 3-6 Line Thickness

Line thickness is the height of a line, not the width which it is often confused with. It is used to give the line a 3-D effect.Lesson 3-7 Regions and 3-D surfaces

You can start working in true 3-D with the Region, Extrude, and Face Command.
Region specifies an area, and Extrude makes a shape 3-D from a 2-D closed shape. (It pulls it out)


Lesson 3-7a Extruding to Create 3-D objectsUsing Extrude from the last lesson you can extrude to a path, or you can taper it. The image above uses both, the circle is extruded to a path and it is tapered.

Lesson 3-8 Revolved Objects

Resurf rotates a line along a path to create a surface around an axis. Revolve creates a solid object from a line along a path.Lesson 3-9 Adding Materials

Using Render you can add lighting and texture to your object
Lesson 3-10 Primitive Solids

A primitive solid is a simple object that you can use to work with in 3D. AutoCAD has some basic 3D shape commands at your disposal. From these basic primitives, you can start building your 3D models.

SHAPE	COMMAND	ICON	DESCRIPTION
BOX	BOX		Creates a solid box after you provide 2 opposite corners.
SPHERE	SPHERE		Creates a solid sphere from a center point and radius.
CYLINDER	CYLINDER		Creates a straight cylinder from a center point, radius and height.
CONE	CONE		Creates a tapered cone from a center point, radius and height.
WEDGE	WEDGE		Creates a triangular wedge from 2 opposite points.
TORUS	TORUS		Creates a torus (donut shape) based on center point, radius and tube radius.
POLYSOLID	PSOLID		Draws a solid object with width and height as would draw a polyline.

Lesson 3-11 Boolean Operations

COMMAND	INPUT	ICON	DESCRIPTION
UNION (Boolean)	UNI		Joins two or more solids into creating one based on the total geometry of all.
SUBTRACT (Boolean)	SU		Subtracts one or more solids from another creating a solid based on the remaining geometry.
INTERSECT (Boolean)	IN		Creates a single solid from one more solids based on the intersected geometry.
EXTRUDE FACE	SOLID EDIT		Allows you to increase the size of a solid by extruding out one of its faces.
SLICE	SLICE	none	Slices a solid along a cutting plane.
3D ALIGN	3DALIGN		Aligns 2 3D Objects in 3D space.

Lesson 3-12 The User Co-ordinate System

It allows you to change the plane you are drawing on so that you can add more detail
Lesson 3-13 Mapping Materials

Involves changing the size of the image (material) and the orientation of it so that it makes the most sense and looks presentable.

COMMAND OR INPUT		ICON	DESCRIPTION
MATERIALMAP		None	Enter this on the command line to select mapping options via keyboard.
Planar Mapping			Maps individual faces of an object.
Box Mapping			Maps any solid object with controls for width, depth and height as well as rotation on all sides.
Sphere Mapping			Allows you to map any solid object, but uses rotation only.
Cylinder mapping			Maps a solid object with height and rotation only.

Lesson 3-14 Creating New Materials

Sometimes you need to create your own material images because Auto CAD does not have them already.
You can load your own images to use and then add them to your object.

Lesson 3-15
Lesson 3-16
Lesson 3-17

All involve using Auto CAD 3-D they contain extra topics or tools through a project, of building a house.