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Cab 4 Theory Test 3 > Integrated CNC 401F > Flashcards

Integrated CNC 401F Flashcards

1
Q

How does modern CNC differ from previous generations?

A

More intuitive to use..

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1
Q

Describe programing for a CNC

A

A CNC reads G codes & M codes that are input by a computer.

The computer controls the movement simultaneously along all axes.

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2
Q

What is an Axis and list the 3 basic Axes.

A

Axis is a specific direction of movement.

Basic Axes = X, Y, Z

Some machines only have 2 Axis but 3 is most common now.

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3
Q

MRZ means?

A

Machine Reference Zero.

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4
Q

What is PRZ?

A

The point on the part that represents ZERO.

Setting the machine to this point the cutterhead is directed where to go and to cut in reference to the part.

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5
Q

What are coordinates in regard to CNC’s?

A

Specific location on an axes referenced to a starting point.

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6
Q

What are G-Codes?

A

They are prepared functions (ex: Circular motion clockwise)

They describe the specific movement of a tool.

This makes writing programs a lot easier.

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7
Q

What are M-Codes?

A

Machine Codes

Cause machine to activate or deactivate performance of a task.

They vary with each machine.

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8
Q

The first step in developing a program is to first?

A

Design a part (Typically in a CAD program)

Then imported into a CAM software that generates the program codes.

Sometimes the drawing is created at the MCU.

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9
Q

What’s the fourth Axes?

A

C

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10
Q

Stores all the parameters on the tool?

A

Tool Database: Stores tool data

Example - G1 = Radius
Example - G3 = Length - Cutting Length.

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11
Q

On a CNC machine what helps you ensure the part is in the right location?

A

Stop pins ensure the panel is properly situated.

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12
Q

What is displayed in this picture?

A

Machine Control Unit MCU

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13
Q

What are the 2 reference points shown in the picture?

A

Part Reference Zero and Machine Reference Zero

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14
Q

What is being shown in this picture?

A

X & Y Coordinates

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15
Q

What is being shown in this picture?

A

Commonly used G-Codes for machining centers.

16
Q

What is being shown in this picture?

A

Standard M-Codes

17
Q

What is being shown in this picture?

A

Drawing Generated at the Machine Control Unit (MCU)

18
Q

What is being shown in this picture?

A

Panel Placed on machine against stop pins and vacuum started.

Cab 4 Theory Test 3 (4 decks)

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