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WEEK 1  - Numerical Control

DUE BY THE END OF THIS WEEK 

  • ​3M01 - 100 PTS (EACH ASSIGNMENT IS 20 PTS X 5)

DRAWING ASSIGNMENTS 

CREATE A LOGIN WITH TITAN CNC

DRAW EACH DRAWING BELOW.

WHEN FISHED WITH THE DRAWING WATCH VIDEO ON THE CAM PROCESS.  AND THEN THE VIDEO ON THE CNC. 

DRAW EACH DRAWING BELOW.

WHEN FISHED WITH THE DRAWING WATCH VIDEO ON THE CAM PROCESS.  AND THEN THE VIDEO ON THE CNC. 

WRITTEN ASSIGNMENTS 

Read Chapter 17 on page 598. Answer the question below and enter into OPEN LMS under 3M010.

1. CAM is an acronym for

A. ​computer-aided manufacturing.

B. computer-assisted manufacturing.

C. computer-automated manufacturing.

D. computer-aided machining.

E. computer- assisted machining.

2. The automated control of a lathe or mill is know as

A. CAD/CAM

B. CIM

C. numerical control.

D. computer numerical control.

E. direct numerical control.

3. The total computer-based automation of entire manufacturing process is known

A. CAD/CAM.

B. CIM.

C. numerical control.

D. computer numerical control.

E. direct numerical control.

4. ______ dimensioning is the most often used in preparation of drawings for NC.

A. Tabular

B. Ordinate

C. Polar

D. Geometric

E. Baseline

5. The system of programming NC machines that always reference the last programmed point is known as ______ coordinate programming.

A. absolute 

B. relative 

C. offset 

D. fixed origin 

E. floating origin

6. A know point or location on a part used to reference the origin is a(n)

A. origin-point

B. initial-point

C. startup-point

D. setup-point

E. set-point

7. The up-down motion of a turret drill correspond to the ____ axis in an NC program. 

A. X

B. Y

C. Z

D. W

C. U

8. ______ tolerance should be used for NC drawings

A. Limit

B. Lower limit

C. upper limit

D. unilaterial

E. Bilaterial 

9. The position where the X and Y axes intersect is known as the 

A. origin 

B. fulcrum 

C. start-point

D. setup-point

E. offset-point

10. On most NC machine, the Z zero plane is  _____ the workpiece.

A. on

B. to the left of 

C. to the right of 

D. Below

E. above

11. The specified tolerance range for NC drawings should be _____ for drawings for manual production. 

A. more restrictive than 

B. less restrictive than

C. the same as

D. more restrictive for larger parts than

E. less restrictive for smaller parts than

12. Parabolas or similar curves are _____ in NC machining.

 

A. to be avoided 

B. approximated by curves

C. defined by notes such as BLEND SMOOTHLY

D. defined by mathematical equation

E. approximated by linear interpolation

 

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