CNC Router Safety Test

29 Questions | Total Attempts: 30

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CNC Router Safety Test

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


Questions and Answers
  • 1. 
    How do you calculate the feeds and speeds for your job?
    • A. 

      Internet forums

    • B. 

      Use default values in VCarve

    • C. 

      Make up some numbers that seem good.

    • D. 

      Use the equation displayed on the wall and in the handbook

  • 2. 
    What is the fastest feedrate that our machine can move?
    • A. 

      100IPM

    • B. 

      150IPM

    • C. 

      200IPM

    • D. 

      400IPM

  • 3. 
    You just use the feed/speed settings produced by your CAM tool (VCarve, Fusion 360, etc)? 
    • A. 

      True

    • B. 

      False

  • 4. 
    In general, the more flutes on a bit, the __________ your feed should be.
    • A. 

      Faster

    • B. 

      Slower

  • 5. 
    Spindle speed info must be set manually on the router for each GCODE file executed in Mach 3
    • A. 

      True

    • B. 

      False

  • 6. 
    Hold down placement (i.e.- screws) does not affect safe machine use
    • A. 

      True

    • B. 

      False

  • 7. 
    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. 

      Always wear eye protection

    • B. 

      Always double check our feed/speed/material/bit combos

    • C. 

      Never set feeds too fast for material

    • D. 

      All of the above

  • 8. 
    When placing a bit in the router, the bit ‘stickout’ should be
    • A. 

      Half the bit

    • B. 

      ¾ bit length

    • C. 

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

    • D. 

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

  • 9. 
    There are 2 recommended ways to emergency stop the machine, which are they? (Select all that apply)
    • A. 

      Pull the plug

    • B. 

      Pull the EMERGENCY stop button on the machine table

    • C. 

      Push the EMERGENCY STOP button in Mach3

    • D. 

      Push the EMERGENCY stop button on the machine table

  • 10. 
    1.     The page up/down buttons move what in Mach3
    • A. 

      X Axis

    • B. 

      Y Axis

    • C. 

      Z Axis

    • D. 

      Spindle speed

  • 11. 
    To set the home x/y origin on the router table you move the router to the position and then in Mach3
    • A. 

      Press “go to zero”

    • B. 

      Press “Zero X” and “Zero Y” buttons

    • C. 

      Press “auto tool zero” button

    • D. 

      Press the “Zero All” button

  • 12. 
    To set the home z axis origin you (Select all that apply)
    • A. 

      Move the bit to somewhere over your work piece or machine bed

    • B. 

      Place the z touch plate directly underneath the bit

    • C. 

      Attach the z touch plate clip to the bit

    • D. 

      Press “auto tool zero” in Mach3

  • 13. 
    What are some things that you must keep in mind when attaching the alligator clip for the z touch plate to the end mill? (Select all that apply)
    • A. 

      Make sure that the clip is not touching paint on the end mill

    • B. 

      Make sure that the clip is attached to the wood scrapboard

    • C. 

      Make sure that the bottom of the end mill is free of wood chips

    • D. 

      Make sure that the clip will not contact the cylinder instead of the end mill

  • 14. 
    The location of the cylinder when you are setting the z zero is
    • A. 

      Always on the machine bed

    • B. 

      Always on the material surface

    • C. 

      The same as what you set in VCarve

    • D. 

      Below the router table

  • 15. 
    Before turning on spindle you must check the bit, feed, and speed settings to make sure they are compatible with your current bit and material.
    • A. 

      True

    • B. 

      False

  • 16. 
    Which of the following are approved materials for our CNC router (Select all that apply)
    • A. 

      Soft woods

    • B. 

      Aluminum

    • C. 

      Hard woods

    • D. 

      Steel

    • E. 

      Plastics

  • 17. 
    The key to the ESTOP button on the table is
    • A. 

      On the desk next to the computer w/ Mach3 on it

    • B. 

      In a keylock next to the entry door

    • C. 

      In the ESTOP button

    • D. 

      Under the CNC Router table on the shelf

  • 18. 
    Size limits for milling with our CNC Router (x/y/z)
    • A. 

      48x48 in

    • B. 

      48x48 ft

    • C. 

      48x24 in

    • D. 

      48x96 in

  • 19. 
    Our CNC Router RPM is limited to speeds between
    • A. 

      1000 and 10,000 RPM

    • B. 

      6,000 and 16,000 RPM

    • C. 

      8,000 and 24,000 RPM

    • D. 

      100 and 1000 RPM

  • 20. 
    Vacuum must be turned on while CNC Router is running
    • A. 

      True

    • B. 

      False

  • 21. 
    Cleanup steps (Select all that apply)
    • A. 

      Put away tools

    • B. 

      Remove bit

    • C. 

      Clean table and floor

    • D. 

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

  • 22. 
    The Powell Makerspace provides bits 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 Router I should
    • A. 

      Email those concerns to [email protected] and not use the machine until 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