Workshop Notes
16 September 2003

Review of Modification Tools:
1. Modify: Changes the position and lengths of vectors.
2. Partial Delete: Breaks an element into two parts.
3. Extend Line: Stretches the length of a line or arc, keeping its orientation.
4. Extend Elements to Intersection: Stretches the length of two lines or arcs until they meet.
5. Extend Element to Intersection: Stretches one line or arc until it intersects another element.
6. Trim: Cuts an element. The first selection is the cutting object. The second selection is the object to be cut away. To trim multiple elements, use the pre-selection command to select the elements, then use the trim command to select the cutting object.
7. Intelli-Trim: More complex trimming functions.
8. Insert Vertex: Adds additional points to an element.
9. Delete Vertex: Removes points from an element.
10. Construct Circular Fillet: Creates an arc between two intersecting lines. The truncate option removes the trailers beyond the fillet.
11. Construct Chamfer: Creates an line between two intersecting lines.

Right hand rule:
Index finger (x-axis), middle finger (y-axis), and thumb (z-axis) are all at right angles to each other. This technique helps discern the orientation of model while working.

Rotate View Tools:
1. Dynamic: Allows dynamic 3-D view my holding down and moving the mouse.
2. Top: Plan view; looking down the z-axis.
3. Front: Looking down the y-axis.
4. Right: Looking down the x-axis.
5. Isometric: Basic 3-D point of view at 45 degrees from each axis.

View Orientation Tool (on the Display Toolbar):
Exactly identical functions at the Rotate View Tool

X-Y-Z Icon:
Identifies the global coordinate point of 0,0,0.

AccuDraw Icon Identification:
The red tick identifies the x-axis, the green tick identifies the y-axis, and the z-axis is implied using the right-hand-rule. If you do not see the AccuDraw Icon, hit the icon at the top of the screen. It is recommended to always draw using AccuDraw.

Separating Viewing and Drawing Functions:
Hitting "T" while viewing in 3-D, allows you to draw in the top view. You will see the AccuDraw Icon realign to the selected drawing plane.

Using AccuDraw in 2-D:
1. AccuDraw provides a local coordinate system, allowing the construction of object with respect to themselves. Typing a specific length gives precision to drawing. The grid system is no longer necessary for accuracy.
2. AccuDraw recognizes general movements or gestures along the x, y, and z coordinates and will snap into those alignments when the mouse moves nearby.
3. To draw a line at a precise angle, enter an x value, do not hit enter, enter a y value, hit enter to compete line. AccuDraw then rotates to the orientation of the diagonal line.
4. Hitting "Enter" while drawing locks AccuDraw onto an axis. Hitting enter again unlocks it.
5. Hitting "X" or "Y" locks the respective axis at a specific distance, allowing freedom of movement along the other axes.
6. The space bar toggles AccuDraw between the polar coordinate system and the x,y,z coordinate system.

Using AccuDraw in 3-D:
1. At the lock symbol at the bottom of the screen, turn off the ACS (Auxiliary Coordinate System) Snap. Turn on the ACS Plane.
2. Use shortcut key strokes to draw in the top ("T"), front ("F"), and side ("S") plane.
3. Use snaps to reference existing objects.

Creating a Unique Drawing Plane:
1. Snap to an element. Notice the orientation plane.
2. Type "RA" (Rotate Axis).
3. Reminder: Follow instructions at bottom left of screen.
4. Snap to define x-axis.
5. Snap to define y-axis.
6. Snap to define z-axis.
7. Finish drawing in new drawing plane.

Shifting drawing start point:
1. Type "O" in order to use the AccuDraw compass without drawing.
2. Type a specific location and click enter to start drawing.

"?" shows all the AccuDraw shortcuts.

Review of Solid Primitives:
1. Locate the set of icons under Tools/3D Main/3D Primitives.
2. Slab, Sphere, Rectangle, Cone, Torus, Wedge

3-D Construct Tools:
1. Locate the set of icons under Tools/3D Main/3D Construct.
2. Extrude: Makes a planar object 3-dimensional. The original 2-D object must be closed.

Making a Closed Object:
1. Locate the light bulb icon with the curved broken line.
2. Select the third icon, called Construct Complex Shape.
3. Select the segments in the order that they are to be joined together.

Boolean Operations:
1. Locate the set of icons under Tools/3D Main/TF 3D Modify.
2. Construct Union: Combines two objects into one solid object.
3. Construct Intersection: Creates a solid object as the shape common to two elements.
4. Construct Difference: Subtracts one object from another. First, select the object to remain. Second, select the object to subtract.