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Re: rong fu 30 issues

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  • mrwhiz49
    Mine will do the same thing. Drill chucks don t do well with sideways forces. Endmills in the chuck tend to knock the chuck loose from the taper fit.
    Message 1 of 4 , Jul 14, 2013
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      Mine will do the same thing. Drill chucks don't do well with sideways forces. Endmills in the chuck tend to knock the chuck loose from the taper fit.
      --- In mill_drill@yahoogroups.com, "davidhallsten" <tooldoc@...> wrote:
      >
      > I got this nice little mill earlier this spring, and noticed that when using the drill chuck to drill a hole with a small rotabroach cutter, it wobbled like crazy when I started to put downward pressure on it. hummm. could this be the chuck is crappy ? maybe.
      >
      > the chuck was a old Jacobs ball bearing chuck with a worn out toothed sleeve. the sleeve was as expensive as a couple new chucks so I got one new one, saved the old one for the widows auction :)
      >
      > same problem. .. . even with a 1/8 inch end mill in it, the initial down pressure, even just a little down pressure and it wobbles like a spindle bearing is loose. I tried moving the spindle back and forth when its not turning and do not feel any looseness and it seems to run fairly quiet.
      >
      > this could be why it was available to me. another hummmmm !
      >
      > the good news is that it only wobbles with chuck, not when I use the collets.
      >
      > can someone explain ????
      >
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