Calibration Question

Discussion in 'CNC Machines and Conversions' started by vascon2196, Apr 24, 2018.

  1. Apr 24, 2018 #1

    vascon2196

    vascon2196

    vascon2196

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    Hello!

    I have a Haas CNC Mini-Mill which is used in education. It is used to cut aluminum mostly and to teach students about G-Code, Mastercam, etc

    My department chair needs a justification to calibrate the machine before the money is spent.

    What would be a few good reasons to calibrate besides the obvious?

    Thank you guys.
     
  2. Apr 24, 2018 #2

    dieselpilot

    dieselpilot

    dieselpilot

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    If the obvious reasons aren't enough, then I doubt any other reason is. Has the machine been rebuilt?
     
  3. Apr 24, 2018 #3

    rklopp

    rklopp

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    What do you mean by "calibrate?" Do you mean check the leveling, tram, and any linear compensation? I think it would be hard to justify calibration via a ball-bar or laser test on a school machine.
     
  4. Apr 25, 2018 #4

    ninefinger

    ninefinger

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    The justification is as you say for obvious reasons - inspection of a part after the fact doesn't make it right, if the cost of potentially scrapped, high tolerance parts is high then calibration is justified.
     
  5. Apr 25, 2018 #5

    vascon2196

    vascon2196

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    The machine has not been rebuilt.
     
  6. Apr 25, 2018 #6

    dieselpilot

    dieselpilot

    dieselpilot

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    Is it making bad parts?
     
  7. Apr 26, 2018 #7

    Herbiev

    Herbiev

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    Less re-working of parts and less wear and tear on the machine are two reasons that come to mind
     
    vascon2196 likes this.
  8. Apr 29, 2018 #8

    vascon2196

    vascon2196

    vascon2196

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    No but it hasn't been looked at mechanically since the school bought it in 2006. Just trying to be proactive since it is the only CNC machine we have. If it breaks down we are dead in the water.
     
  9. Apr 29, 2018 #9

    ninefinger

    ninefinger

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    Calibration is not the same as maintenance. You should be able to justify a qualified technician doing an inspection and service on it, especially if not done for over 12 years. Catching something before it breaks is far less expensive and time consuming than after.

    Mike
     
  10. May 7, 2018 #10

    vascon2196

    vascon2196

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    All set...thanks again for the advice and suggestions.

    I was able to convince them to follow through with an annual maintenance/calibration package from the re-seller.

    Take care
     

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