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Re: changes to 5 axis machine

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  • cdoughtynz
    Hi Rab, What size steppers did you use on the X Y & Z axis on your gantry router? Colin
    Message 1 of 4 , Dec 2, 2005
      Hi Rab,

      What size steppers did you use on the X Y & Z axis on your gantry router?

      Colin




      --- In CNC_Toolkit@yahoogroups.com, "rainnea" <yahoo@r...> wrote:
      >
      > Hi Colin,
      >
      > Good questions,
      >
      > I'm assuming you're talking about the gantry router -
      >
      > For the B/C axes I used 270oz/in size 23 steppers – they would be ok
      > with more gearing – 5.5:1 is too low, somewhere between 30 and 60 to
      > 1 would be fine.
      > I was stalling cutting plywood with a 60 degree 3-flute engraving
      > cutter at about ¼" cut depth. I think it would have been fine for
      > cutting foam.
      >
      > Having the spindle in line with the C-pivot would have advantages at
      > the expense of being slightly less compact.
      >
      > I'm not sure that I'd change very much on that machine given the
      > same budget and access to surplus parts.
      > Building from scratch with a more flexible budget I'd use harmonic
      > gears on the B/C head, servos all round and would consider belt
      > drives for the linear axes.
      > I'd definitely use an industrial spindle rather than a router.
      >
      > Rab
    • rainnea
      2 x size34 - 200oz/in on X size34 - 700oz/in on Y size23 - 270 oz/in on Z mostly because they were what I had to hand at the time - although they work ok, X
      Message 2 of 4 , Dec 4, 2005
        2 x size34 - 200oz/in on X
        size34 - 700oz/in on Y
        size23 - 270 oz/in on Z

        mostly because they were what I had to hand at the time - although
        they work ok, X and Z are a bit underpowered and Y may be a bit
        overkill.

        Rab




        -- In CNC_Toolkit@yahoogroups.com, "cdoughtynz" <cdoughty@p...> wrote:
        >
        > Hi Rab,
        >
        > What size steppers did you use on the X Y & Z axis on your gantry
        router?
        >
        > Colin
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