CNC Basics & Toolpaths
Compensation, Cycles & Codes
Mastercam & Planes
Lathe & Live Tooling
Multi‑Axis & UMC Concepts
100

 In CNC mill programming, it is standard practice to establish a safety zone above the workpiece or workholding device called a .

Clearance Plane

100

 Once _ is properly turned on, the MCU makes all necessary compensation and the part coordinates may be programmed as though the cutting tool did not have a radius at all.

Tool Nose Radial Compensation

100

 In Mastercam, which toolpath option allows for tapping?

Drill

100

The two axes that you usually use on a lathe are what?

x&z

100

 Any time there are more axes of movement than standard, the machining is considered

MultiAxis

200

 When the machine knows where the tool tip is so that the tool can be programmed from its tip regardless of its length, this is called the offset.

Tool Height

200
  •  cycles require the programmer to write a block or two of code in a specified format.



Canned

200

 In Mastercam, Levels are used to what?

Organize

200

 Which tool path for the lathe allows you to drill holes perpendicular to the axis?

c-axis drill

200

 What type of multi axis milling uses G254?

3+2

300

A is the path that the tool will follow in order to machine a part.

Toolpath

300

 can be placed at the beginning of each block of code to serve as a label for each block.

Sequence Numbers

300

 When constructing new wireframes on solid models, if you want the wireframe to exist on top of a particular face, it is important to turn that face into a new construction plane. (Turn into: “Why is it important to make a face a construction plane before creating wireframe on it?”)

true

300

 Which tool path on the lathe allows for axial drilling?

Face Drill

300

 Which axes are on the UMC 500?

xyzbc

400

The individual lines and arcs that represent the outline of the part's shape are called .

Enteties

400

What is the proper code to turn on live tooling in reverse at a speed of 750 rpm?

M134

400

 How do I create a wireframe from a solid?

Curve all edges

400

 What is it called when tooling on the lathe turret has its own ability to turn?

Live Tool

400

 In _, all axes can interpolate at the same time.

5Axis

500

 This kind of machining trades out radial cutting for axial cutting with higher feed rates.

Highspeed

500

What is the speed and feed of a 2 flute 3/8 ball nose end mill with an SFM of 675?

6876-27.5

500

 If the PLANES tab is not visible where is it turned on?

View

500

What code engages the C axis?

M154

500

 In _, you move the B and/or C axes, clamp them down, and then operate on the XYZ axes to cut your geometry.

3+2

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