CNC Mill Safety Test

39 Questions

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CNC Mill Safety Test

Test that will enable you to get an access code for the key to use the CNC Router.


Questions and Answers
  • 1. 
    Choose all safety equipment that should be worn when using the CNC mill.
    • A. 

      Safety glasses

    • B. 

      Winter coat

    • C. 

      Closed toed shoes

    • D. 

      Hair tied back

  • 2. 
    The oiler plunger should be pulled
    • A. 

      Only by Makerspace staff

    • B. 

      Once a month

    • C. 

      Each hour of use

    • D. 

      At the start of each use

  • 3. 
    Where should you look up to find reference feed/speed pairs for any bit and material combination?
    • A. 

      VCarve Pro

    • B. 

      FSWizard

    • C. 

      Internet forums

    • D. 

      Just guess

  • 4. 
    Where are feeds and speeds set for your machining job?
    • A. 

      In Mach 3

    • B. 

      While the mill is running

    • C. 

      On the mill control panel

    • D. 

      In the CAM tool such as PathPilot Conversational or Fusion 360 CAM

  • 5. 
    You just use the feed/speed settings produced by your CAM tool (VCarve, Fusion 360, etc)? 
    • A. 

      True

    • B. 

      False

  • 6. 
    In general, the more flutes on a bit, the __________ your feed should be.
    • A. 

      Faster

    • B. 

      Slower

  • 7. 
    Carbide tipped end mills generally require faster feeds than equivalent HSS ones.
    • A. 

      True

    • B. 

      False

  • 8. 
    To get the spindle speed necessary for your unique end mill/material/feed combination, you may have to change the belt on the spindle.
    • A. 

      True

    • B. 

      False

  • 9. 
    Work piece mounting and hold down placement does not affect safe machine use
    • A. 

      True

    • B. 

      False

  • 10. 
    It is OK to use endmills in drill chuck tool holders.
    • A. 

      True

    • B. 

      False

  • 11. 
    While rare, bits can break while running if feed/speeds/material/bit combination is not correct.  Those broken bit tips can fly across the room and injure someone which is why we
    • A. 

      Ensure the cabinet doors and all side plexiglass windows are closed

    • B. 

      Always double check our feed/speed/material/end mill combos

    • C. 

      Never set feeds too fast for material

    • D. 

      All of the above

  • 12. 
    When placing an end mill in a tool holder, the ‘stickout’ should be
    • A. 

      Half the bit

    • B. 

      ¾ bit length

    • C. 

      As little as needed for the depth of cut and without obstructing flutes

    • D. 

      As much as possible while safely holding the bit in the collet

  • 13. 
    You must add and measure a tool to the offset table before use.
    • A. 

      True

    • B. 

      False

  • 14. 
    After first use, you do not have to check the offset table for bit information?
    • A. 

      True

    • B. 

      False

  • 15. 
    Check all of the steps necessary to add a new mill offset to the offset table
    • A. 

      Enter the spindle speed

    • B. 

      Enter the tool diameter

    • C. 

      Enter the tool offset using the electronic offset measuring device (granite block)

    • D. 

      Use a ruler to measure the end mill

    • E. 

      Add a name for the tool

  • 16. 
    To set the home x/y origin on the CNC Mill, you move the spindle to the X and Y position and then,  in Path Pilot,
    • A. 

      Press “go to zero”

    • B. 

      Press “Zero X” and “Zero Y” buttons

    • C. 

      Press “auto tool zero” button

    • D. 

      Press Ref Z and Ref Y

  • 17. 
    The recommended way to emergency stop the CNC Mill is
    • A. 

      Pull the plug

    • B. 

      Pull the EMERGENCY stop button on the machine table

    • C. 

      Hit the EMERGENCY STOP button on Path Pilot software

    • D. 

      Press the EMERGENCY stop button on the machine table

  • 18. 
    Before starting your operation, you must check the tool, offset, feed, and speed settings to make sure they are compatible with your current bit and material.
    • A. 

      True

    • B. 

      False

  • 19. 
    Size limits (in inches) for milling with our CNC Mill (x/y/z)
    • A. 

      14x7.5x13.25

    • B. 

      48x48x6.75

    • C. 

      14.5x14.5x14.5

    • D. 

      48x96x4

  • 20. 
    Our CNC Mill RPM is limited to speeds between
    • A. 

      200 and 10,000 RPM

    • B. 

      6,000 and 16,000 RPM

    • C. 

      8,000 and 24,000 RPM

    • D. 

      100 and 1000 RPM

  • 21. 
    Check all steps you must complete when finished with the CNC Mill
    • A. 

      Put away tools

    • B. 

      Remove tool

    • C. 

      Vacuum/brush chips out of machine

    • D. 

      Toss any excess material into garbage, “free bin”, or take home

    • E. 

      Wipe down exposed surfaces

    • F. 

      Spray exposed surfaces with a mist of WD40

  • 22. 
    The Powell Makerspace provides endmills for members to use for their own projects
    • A. 

      True

    • B. 

      False

  • 23. 
    Who is responsible for the safe operation of the Makerspace CNC Router?
    • A. 

      The makerspace

    • B. 

      The roaming gnome

    • C. 

      Myself – I signed a waiver and acknowledge that I understand how to operate the machine safely

    • D. 

      The makerspace staff

  • 24. 
    If I have concerns about the safe use of the Powell Makerspace CNC Mill, I should
    • A. 

      Email those concerns to [email protected] or tell a makerspace staff member and not use the machine until those concerns are addressed

    • B. 

      Suck it up, buttercup

    • C. 

      Ask a friend

    • D. 

      Use the machine anyway

  • 25. 
    It is ok to leave the room while the CNC is running
    • A. 

      True

    • B. 

      False