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Drilling a mill-drill table

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  • Drilling a mill-drill table

    I recently bought a CBX digital display for my bench top mill/drill. I'm a begginer and I don't know how to drill and tap in the sides of the table, I think it's kind of hard and how do I do to drill it on-site, with a portable drill?, What kind of drills? how do I do not to drill off-axis?. Please help me!
    Docgera

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    Dr. Gerardo
    Dr. Gerardo

  • #2
    Make yourself a template to match the hole pattern you need. Make it thick enough to also keep you straight. About the table- How hard? Can you cut it with a file? What kind of mill is it? I cant imagine it be hardened or Ive never seen one that is. Maybe its case hardened.
    Rufus

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    • #3
      I did my CBX like you are. I just drilled with a hand held drill, real carefully, and tapped the holes. Nuthin to it.

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      • #4
        Leadscrew is right. Make a template from 1/4 " flat bar drilled to tap drill size and clamp it in position as tight as you can and drill it with a dand drill. It's just good cast iron. Cheese!

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        • #5
          Shouldn't be a problem. The cast iron in the mill/drill should drill pretty easily. The trick is making sure the holes don't wander.

          Good idea on the template.

          Another thought: does the table have a front T-slot for stops? If so, you might be able to mount the DRO on brackets bolted into T-nuts in the slot, and not drill the table at all.
          ----------
          Try to make a living, not a killing. -- Utah Phillips
          Don't believe everything you know. -- Bumper sticker
          Everybody is ignorant, only on different subjects. -- Will Rogers
          There are lots of people who mistake their imagination for their memory. - Josh Billings
          Law of Logical Argument - Anything is possible if you don't know what you are talking about.
          Don't own anything you have to feed or paint. - Hood River Blackie

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          • #6
            Thanks a lot! Hope to be reading digital display soon
            Dr. Gerardo

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