CAM for 3-Axis Milling Professional Certification Prep - Pre-test | Autodesk

CAM for 3-Axis Milling Professional Certification Prep

Outline

1

Getting started

Module overview

Course overview

Get the software

2

See where you stand

Module overview

3

Plan and set up work

Module overview

Analyze drawings

Setting up stock

Designing fixturing methods

Performing CAM setup

Practice exercise

Challenge exercise

4

Machine setup

Module overview

Planning tool holders

Assembling tooling

Practice exercise

Challenge exercise

5

Programming toolpaths

Module overview

Determining toolpath inputs

Optimizing toolpaths

Applying toolpaths

Practice exercise

Challenge exercise

6

Verifying and simulating

Module overview

Validating stock removal

Adjusting toolpaths

Reviewing collisions

Practice exercise

Challenge exercise

7

Outputting code

Module overview

Selecting program settings, post configurations, and properties

Identifying critical components of a setup sheet

Practice exercise

Challenge Assignment

8

Inspecting parts

Module overview

Validating parts

Performing program prove out

Practice exercise

Challenge exercise

9

Course challenge exercise

Module overview

Challenge exercise

10

Practice test

Module overview

Start your practice test

Pre-test

Before you begin this course, test your skills by taking the following assessment to see where you stand. Keep track of your incorrect answers to know which skills you should study. You'll have a chance to take this same practice test again at the end of the course to see how you've improved.

All questions must be answered to submit your assessment.

Pre-assessment

45 questions

1. A CNC programmer is machining a part and needs to ensure that all stock is removed, even the stock left from tool deflection. Which of the following options can be enabled to achieve this?

Use a conventional pass for the finishing pass
Use a negative stock to leave value
Repeat Finishing Pass
Increase the finishing pass feedrate

Error: Select an answer

2. A CNC programmer wants to configure a toolpath to descend directly into the part. Which of the following accomplishes this?

Increase ramp taper angle
Set Ramp Type to Plunge
Increase ramp taper angle
Increase ramp diameter

Error: Select an answer

3. A CNC programmer wishes to see if the toolpaths applied will leave gouges in a machined part. Which of the following Colorization options allows for this to be shown?

Tool in simulation
Model in simulation
Operation in simulation
Comparison in simulation

Error: Select an answer

4. A file has two setups, one for the front operation and one for the back operation. Roughing, finishing, and chamfering toolpaths have been applied to both operations. If you wanted to only post the code for the face and the chamfer of the front operation, which of the following would be a valid option?

Create an NC program and select the first setup
Create an NC program and select only the roughing, finishing, and chamfering toolpaths
Create an NC Program and select the second setup
Create an NC program for each of the desired toolpaths

Error: Select an answer

5. A bullnose is machining a part and making excessive chatter. Which of the following might this indicate?

Excessive chip load
The tool is hitting the vise jaw
The tool is leaving too much stock behind
Stringy chips in the drill

Error: Select an answer

6. A CNC programmer is preparing to machine a part that will have its profiled turned in a lathe before being moved to a mill. Which of the following is the best practice for preparing the model?

Define the stock as a fixed size cylinder when creating the setup.
Revolve a sketch that represents the lathe profile, then continue to mill the part.
Duplicate the body to remove mill features for stock, then continue to mill the part.
Define the stock as a fixed size tube when creating the setup.

Error: Select an answer

7. A CNC programmer is setting up a probe to reset a work coordinate system based on machine surfaces. What would they configure If they wanted to probe the stock instead of the model?

Increase bottom height offset
The Probe Mode
Increase top height offset
The probe used for the probing cycle

Error: Select an answer

8. A simulated toolpath currently retracts and descends to different contours of the model before finishing clearing the area where it is located. How can this be optimized?

Enable Rest machining from previous operations
Decrease Retract Height
Enable Order By Area
Enable Stock Contours

Error: Select an answer

9. A CNC programmer wishes to create a toolpath with a maximum stepover that is equal to 20% of the tool diameter. How can this occur?

Manually calculate 20% of the tool diameter
Edit the Optimal Load expression
Create a template with a stored stepover value
Enable Stock to Leave

Error: Select an answer

10. A CNC programmer needs to position a part within a digital vice. How can the part be positioned parametrically?

Use the Align command.
Use the Joint command.
Create a rigid group.
Use the Move command with the Point-to-point option.

Error: Select an answer

11. When machining complex parts, which of the following is the benefit of creating a digital twin of the machining environment?

The machining times will be more accurate.
The ability to determine the appropriate fixturing method and ensure collision avoidance.
Stock will be removed at a faster rate.
The WCS is created automatically.

Error: Select an answer

12. When simulating a toolpath, the toolholder collides with the workholding. Which of the following can be changed to mitigate this?

The toolpath can be removed
The toolpath can be used to derive another operation
The part must be manufactured on another machine
The size of the toolholder can be updated

Error: Select an answer

13. A Scallop toolpath is applied to a part. During simulation, the toolholder for the toolpath collides with the part. How can this be automatically mitigated?

Edit the tool and change its length below the holder
Enable Detect tool length
Increase the flute length
Edit the tool and add a custom shaft segment

Error: Select an answer

14. When preparing a model to act as starting stock, which of the following heals the surfaces of holes and edges?

Delete Face
Surface patch
Replace face
Press Pull

Error: Select an answer

15. A part is being manufactured using a three-axis vertical machining center. In which direction should the Work Coordinate System Z-axis face?

Towards the top face of part
Perpendicular to the top face of part towards the back of the machine
Perpendicular to the top face of the part towards the front face of the machine
Away from the top face of part

Error: Select an answer

16. A model has several pockets that must be deleted. Which of the following is an efficient way to delete pockets?

Use a window selection to only delete those features.
Use a crossing selection to only delete those features.
Click each face to be deleted while holding the Shift key.
Click each face to be deleted while holding the enter key.

Error: Select an answer

17. A CNC programmer needs to create a partial 2D contour toolpath without creating a sketch to draw the required geometry. How can this be accomplished?

Project the required geometry onto an active sketch plane
Use Avoid Touch Surfaces to limit where the tool can cut
Add a work point at the desired start and stop points
Use Open contour selection on existing model edges using chaining

Error: Select an answer

18. A part needs a 2D contouring toolpath applied only to certain edges. Which of the following methods would be effective?

Create a surface patch and set the surface patch as a model body to block the tool.
Create a sketch to contain the toolpath
Use an open chain machining boundary
Use Avoid Surfaces to exclude the areas where the toolpath should not go

Error: Select an answer

19. A CNC programmer wishes to machine all the stock of a part without limitation. Which of the following options allows for this?

Set Machining Boundary to None
Enable slope
Enable rest machining from previous operations
Enable Stock Contours

Error: Select an answer

20. A team of designers and CNC programmers wish to ensure no burrs are found on a part after it is machined. Which of the following is best to record this kind of inspection?

Setting tolerances in Fusion 360
Measurement input
Bluetooth calipers
Pass/Fail

Error: Select an answer

21. A CNC programmer is preparing the tools to be used in the library. The sample library includes a tool that could be used, but the diameter is inaccurate. Which of the following could be done?

The sample tool can be duplicated and modified.
The tool should be derived into the desired library.
The tool could be modified in the sample library.
A new tool should be created in the desired library.

Error: Select an answer

22. A CNC programmer is preparing a tool library for a team project. Which of the following methods lets the library be shared to the team?

Sync the tool library using a third-party cloud sharing system.
Save the library to the cloud.
Save the library to a read-only project file.
Save the library to a tools project that is accessible by the entire team.

Error: Select an answer

23. A CNC programmer needs to review the machining time and machining distance of a program. Which of the following displays that information?

Statistics tab in the Simulation dialog
Display tab in the Simulation dialog
Next to the setup in the browser
Info tab in the Simulation dialog

Error: Select an answer

24. A CNC programmer is creating an NC Program to simultaneously machine the front and rear stations of a part using a dual station vise. They notice that the different tools are being used for the work offsets for both setups, and that the tools are running each work offset sequentially. If they wanted to save time so that both tools are used simultaneously in both setups using one program, what would be an effective option?

Enable Order by Operation
Enable Reorder to Minimize Tool Changes
Enable Order by Tool
Rearrange the toolpaths in the order they should be machined

Error: Select an answer

25. A part has a 3D adaptive toolpath, but it does not reach certain parts. Which of the following can be applied to clear the remaining stock?

Use a smaller tool and enable Continue machining from previous setup
Use a smaller tool and specify a stock contour
Use a smaller tool and contain the toolpath using Slope
Use a smaller tool with rest machining from previous operations

Error: Select an answer

26. When using 3D Adaptive Clearing, a CNC programmer wants to limit operation of the machine to only remove material not yet removed by previous operations. How can this be accomplished?

Rest Machining
Use a containment boundary
Slope Containment
Enable stock contours

Error: Select an answer

27. In order to accurately verify stock removal and toolpath features that do not exist on the model, which of the following should occur?

Model visibility should be toggled off
Set Colorization to Operation
Set Colorization to Model
Set Colorization to Comparison

Error: Select an answer

28. A part being machined has a toolpath that extends beyond the outer boundary of the part. How can this be modified?

Enable Rest machining from setup stock
Enable Rest machining from previous operations
Disable Stock Contours