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  • Elox Electron Drill?

    Recently acquired an older Elox electron drill (tap burner).Tried online for a manual,no joy.

    Hoping somebody here might have a manual or has used one.

    The controls are pretty straight forward,but what do I use for coolant?Opinions from folks I know have ranged from water-sol coolant to anti-freeze.

    Looks to be a handy machine,even if just used for burning out taps.
    I just need one more tool,just one!

  • #2
    I'm not familiar with the machine Darin, but that's just a simple EDM sinker, right? You can get Hangsterfer's Crystal Brite EDM fluid from MSC for pretty cheap: $80 for a 5 gallon pail.
    "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

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    • #3
      Can't help you on either a manual or information, but you know that now you have it, you'll never break another tap in it's size range again!

      David
      Montezuma, IA
      David Kaiser
      “You can have peace. Or you can have freedom. Don't ever count on having both at once.”
      ― Robert A. Heinlein

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      • #4
        Originally posted by 38_Cal
        Can't help you on either a manual or information, but you know that now you have it, you'll never break another tap in it's size range again!

        David
        Montezuma, IA
        Well the purpose for buying it was to aid people who break taps off in expensive things frequently in exchange for money

        The other purpose was to help out some HSM buddies when they have a mother-f-----! moment.
        I just need one more tool,just one!

        Comment


        • #5
          Originally posted by lazlo
          I'm not familiar with the machine Darin, but that's just a simple EDM sinker, right? You can get Hangsterfer's Crystal Brite EDM fluid from MSC for pretty cheap: $80 for a 5 gallon pail.
          I was thinking about that,but it holds 40 gallons
          I just need one more tool,just one!

          Comment


          • #6
            Holy Cow! If you're really looking for a dielectric fluid, then you might try simple tapwater. Robert Langois mentions antifreeze/water in a 3:7 ratio (the antifreeze for a wetting agent) for his home-brew sinker EDM. His final article said that he was using a witch's brew of antifreeze, soluable oil, and water in a 5:5:90 ratio -- the soluable oil to keep the water from decomposing from electrolysis.
            "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

            Comment


            • #7
              IIRC, the various articles in HSM and other info sources have suggested such diverse materials as distilled water and kerosene.

              As long as all the sparking is under the surface, there should be no problems from a liquid which is to some extent flammable, if there is a heat-sensitive drop-on cover similar to a parts washer. Don't commercial EDM units use an oil/solvent type fluid?
              1601

              Keep eye on ball.
              Hashim Khan

              Comment


              • #8
                Weird, This thing holds 40 gal of coolant??? Must be a tad larger than I would have guessed. How about a picture? JIM
                jim

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                • #9
                  Originally posted by J Tiers
                  IIRC, the various articles in HSM and other info sources have suggested such diverse materials as distilled water and kerosene.

                  As long as all the sparking is under the surface, there should be no problems from a liquid which is to some extent flammable, if there is a heat-sensitive drop-on cover similar to a parts washer. Don't commercial EDM units use an oil/solvent type fluid?
                  Solvents and kero are out.This machine has a 3x4' T-slot table with a radial,tilting and nodding arm to support the work head.The part sits on the table and has a ground attached,the pump supplies fluid through the center of the electrodes(thin brass tubing) and basically just flushes the burn in open air.

                  I'm also figuring on a exhuast fan/hood.
                  I just need one more tool,just one!

                  Comment


                  • #10
                    Originally posted by jimmstruk
                    Weird, This thing holds 40 gal of coolant??? Must be a tad larger than I would have guessed. How about a picture? JIM
                    There abouts,it has two tanks actually,one about 15 and one about 25 that might be an add on or could be factory.It may not need the extra,but then again on a long burn with something water based the losses might be high.

                    No pics yet,camera batts are dead.

                    Got one heck of a power supply,old school too.
                    I just need one more tool,just one!

                    Comment


                    • #11
                      Originally posted by J Tiers
                      Don't commercial EDM units use an oil/solvent type fluid?
                      Seems like most EDM fluids are highly refined hydrocarbons with a high flash point and extremely low viscosity. You probably don't care the low viscosity for a tap burner...

                      But even so, 40 gallons of mineral spirits or kerosene (other popular poor man's EDM fluids) is going to cost you an arm an a leg, and probably a big storage problem as well.

                      There abouts,it has two tanks actually,one about 15 and one about 25 that might be an add on or could be factory.It may not need the extra,but then again on a long burn with something water based the losses might be high.
                      On a sinker, you have the part submerged in the dielectric, but on a tap burner, aren't you just dribbling the fluid onto the tap? Or does this unit have a big tub that you immerse the workpiece?
                      "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

                      Comment


                      • #12
                        Originally posted by lazlo
                        Seems like most EDM fluids are highly refined hydrocarbons with a high flash point and extremely low viscosity. You probably don't care the low viscosity for a tap burner...

                        But even so, 40 gallons of mineral spirits or kerosene (other popular poor man's EDM fluids) is going to cost you an arm an a leg, and probably a big storage problem as well.
                        Well, if it were me, I'd likely plunk some blocks in the tank to take up volume ...... and kerosene is a far cry from $16 per gallon per the special EDM fluid.
                        1601

                        Keep eye on ball.
                        Hashim Khan

                        Comment


                        • #13
                          Originally posted by lazlo

                          On a sinker, you have the part submerged in the dielectric, but on a tap burner, aren't you just dribbling the fluid onto the tap? Or does this unit have a big tub that you immerse the workpiece?
                          This one has a 1/3hp cent. pump and the fluid supply is concentric within the ram.Fluid feeds through the center of the ram,through the electrode and then runs down onto the table which returns it to the tank ala B-port mill.

                          It's basically the HSM sinker/burner on steroids.

                          That old Excello EDM machine is closer to a modern EDM in that it had a gasketed tub that surrounded the part and works submerged.
                          I just need one more tool,just one!

                          Comment


                          • #14
                            Originally posted by wierdscience
                            This one has a 1/3hp cent. pump and the fluid supply is concentric within the ram.Fluid feeds through the center of the ram,through the electrode and then runs down onto the table which returns it to the tank ala B-port mill.

                            It's basically the HSM sinker/burner on steroids.
                            Not to belabor the obvious, but doesn't 40 gallons seem like overkill? You might try filling the reservoir with tap water, and seeing how long (how much fluid) it takes to burn a "typical" tap. I'd be really surprised if it takes 40 gallons of dielectric to burn through a tap!
                            "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did."

                            Comment


                            • #15
                              Originally posted by lazlo
                              Not to belabor the obvious, but doesn't 40 gallons seem like overkill? You might try filling the reservoir with tap water, and seeing how long (how much fluid) it takes to burn a "typical" tap. I'd be really surprised if it takes 40 gallons of dielectric to burn through a tap!
                              I am open to that concept,but it's also rated at 7/8" capacity and has 14" of stroke.Could be it needs it,could be they just didn't want to refill it often.

                              I do plan to start with 5 gallons of whatever,but I also suspect that heat could be a factor.I know it doesn't take a whole lot to get the coolant in a B-port warmed up good.I'm thinking electric arc might be a more efficent water heater than an endmill.
                              I just need one more tool,just one!

                              Comment

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