Deck 45: Two-Dimensional and Three-Dimensional Cad Sketching

Question 1

Describe a surface model.

Answer 1

A surface model can be described as a wire-frame model with a sheet of material stretched over it. In a solid model, no hidden surfaces or edges are shown.

Question 2

With ____, the axes of the object remain attached to the same view even if the object is rotated.

A) World Coordinates
B) View Coordinates
C) Machine Coordinates
D) Cutting Coordinates

Answer 2

A

Question 3

Describe why world views are useful when programming CNC machines.

Answer 3

World Views are very useful when programming CNC machines. Axis designations are necessary for electronic systems to assign movement to machine elements.

Question 4

The ____ movement of indicating movement to points or positions defines a point from the machine's current position.

A) incremental
B) relative
C) perspective
D) absolute

Question 5

Describe the STEP-NC language.

Question 6

The ____ method of indicating movement to points or positions defines a point from machine zero.

A) relative
B) perspective
C) absolute
D) incremental

Question 7

Many CNC machines use a(n) "____" code programming to define a tool path and speed to draw or make a part.

A) C
B) G
C) H
D) J

Question 8

The zero origin point is called the ____.

A) horizon point
B) real zero
C) internal zero
D) machine zero

Question 9

In the ____ system, values are drawn so the x direction is the horizontal axis, y is drawn in the vertical axis direction, and z is perpendicular to the x and y axis.

A) Cutting Coordinates
B) Machine Coordinates
C) World Coordinates
D) View Coordinates

Question 10

Describe the object in the accompanying figure.

Question 11

How can stereolithography printing help the manufacturing process?