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  1. J

    Build my own milling machine

    A good speed to start at for mild steel is 90 surface feet per minute (sfm). If your cutter is 5” and your speed is 583, then sfm = .262 x 5 x 583 = 763 sfm. Too fast. That cutter should run about 70 rpm.
  2. J

    Build my own milling machine

  3. J

    Build my own milling machine

    Seeing the size of your pulleys and the diameter of your cutter, I would guess that you’re dulling your cutters because your speed is way too high.
  4. J

    Forrest Edwards radial 5

    How about using compressed gas?
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