CNC introduction

What does CNC stand for

• Computer Numerical Control

• Computer Number Control

• Computer Numerical Continue

• Computer Number Continue

Early examples of computerised machines were called...

• CM (Computer machine)

• AM (Automated Manufacture)

• NC (Numerical Control)

• ANM (Alpha Numerical Machining)

How many axes do basic CNC milling machines generally operate on?

• 1

• 2

• 3

• 4

How many axes do basic CNC lathes generally operate on?

• 1

• 2

• 3

• 4

State the basic axes in CNC Milling machine.

• V,W,X

• U,Y,Z

• X,Y,Z

• U,V,W

State the basic axes in CNC lathe.

• X,Y

• X,Z

• Y,Z

• Z,Y

What code letters will you most often find in basic CNC programs?

• L

• G

• M

• J

• S

Milling machines work by?

• Rotating a tool/bit which comes into contact with material.

• Rotating material which comes into contact with a stationary cutter or tool.

Lathes work by?

• Rotating a tool/bit which comes into contact with material.

• Rotating material which comes into contact with a stationary cutter or tool.

Advantage of using CNC machines (multiple answers)

• expensive

• consistent

• accurate

• no skill needed

• safer than manual