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Thread: Crashed VF3

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  1. #1
    Join Date
    Nov 2009
    Posts
    71

    Crashed VF3

    Hi Guys,

    We have a 1997 VF3 that was crashed pretty hard, Z rapid move and 4" shell mill right into a part. Does a striped down VF3 have a transmission? I was under the impression gear heads only had a transmission and direct drives machines have just a belt to drive the spindle? Could anyone give me advise how recover the machine?

    Thanks in advance,
    Eric

  2. #2
    Join Date
    Oct 2003
    Posts
    927
    Take a good tarp and drape(recover) it over the machine. This is under the assumption that it had previously been covered.

    Other than that, you need to tell us what it doesn't do now that it did before the crash.
    Shoptask rebuild:
    http://www.cnczone.com/forums/showthread.php?t=2139
    Home built gantry router:
    http://www.cnczone.com/forums/showthread.php?t=5049

  3. #3
    Join Date
    Feb 2009
    Posts
    6028
    Id be less worried about the transmission at this point. You probably moved the Z axis at minimum, so now the ATC may not line up, damaged spindle bearings, and possibly the taper. Call a tech in. You'll be money ahead.

  4. #4
    Join Date
    Dec 2008
    Posts
    717
    Quote Originally Posted by underthetire View Post
    Id be less worried about the transmission at this point. You probably moved the Z axis at minimum, so now the ATC may not line up, damaged spindle bearings, and possibly the taper. Call a tech in. You'll be money ahead.

    X2. There is no magic recover button for that.
    Tim

  5. #5
    Join Date
    Mar 2010
    Posts
    1852
    Unless you have found a problem already, you probably have none. I have see this happen many times and no problem except the part and probably broken inserts.

    Reset the servos and jog up. Remove the tool and home the axis' to see if everything looks okay. Try a tool change to see if it lines up, but should.

    They are not really that fragile and the servos shut down pretty damn fast.

    Tell us all of the dirty details.

    Mike
    Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28

  6. #6
    Join Date
    Apr 2010
    Posts
    59
    Quote Originally Posted by Bloy2004 View Post
    Take a good tarp and drape(recover) it over the machine. This is under the assumption that it had previously been covered.

    Other than that, you need to tell us what it doesn't do now that it did before the crash.
    You really went all in with that one...

  7. #7
    Join Date
    Nov 2009
    Posts
    71
    The machine has no alarms when the spindle is started there is a deep clunking/rattle sound. After removing the head cover noticed there was a gear box under the spindle motor. I removed the spindle drive belt and the spindle turns smooth, free and there seems to be no play.

  8. #8
    Join Date
    Feb 2010
    Posts
    1184
    Quote Originally Posted by Eric MFG View Post
    Hi Guys,

    Does a striped down VF3 have a transmission? I was under the impression gear heads only had a transmission and direct drives machines have just a belt to drive the spindle?
    Do you have a High and Low gear? If yes then you have a gearbox.

    Quote Originally Posted by Eric MFG View Post
    The machine has no alarms when the spindle is started there is a deep clunking/rattle sound. After removing the head cover noticed there was a gear box under the spindle motor. I removed the spindle drive belt and the spindle turns smooth, free and there seems to be no play.
    If the spindle moves freely, it most likely is okay. If the gearbox sounds like it has a bunch of rocks in it, then you probably chipped some teeth on the gears.

  9. #9
    Join Date
    Aug 2010
    Posts
    579

    Haas Factory Support

    From the Haas Factory Service Team:

    You can run the transmission without the spindle belts to see if you hear the same noise. If you do, then you might need a new transmission.
    Thanks,
    Ken Foulks

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