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  • Tailstock Turret

    New member here, thought I'd share a new toy!

    Had a requirement for drilling quite a few brass rifle cartridges and copper projectiles for making pens. This involved multiple drilling operations leaving me with the choice of changing drill bits up to 3 times or doing all parts with one drill first, involving changing each part in the chuck.

    Found a tailstock turret on LMS site and it arrived from the US 2 days ago (shipped last Monday!)


    Came in a snazzy timber box




    Looks promising in the box and seems well made





    Made up some 5/8" arbors for the various bits I want to use with it, such as centre drills and drill bits.





    These still need to be finished and drilled to take the tools, but the start is there. Rough finish on the ends is from the horizontal bandsaw, couldn't be bothered parting them off!

    In the same shipments I got 2 extra smaller drill chucks, a 1/4" and a 3/8" one, together with 5/8" straight arbors (J1 and J2), I will probably cut these shorter, they seem a bit long





    Once I have finished the arbors for the centre drills etc I will put up a few more pics and give a users' report.

    For less than $A100 including delivery, this will come in handy I think.
    Last edited by Steelmaster; 07-01-2009, 09:32 AM.

  • #2
    You are going to want to strive to keep all your tooling the same length if you can...and as short as possible.
    You'll find out why if you have to do a lot of multiples.
    On my Weiler turret machine I keep everything I can as even as I can.
    You would want that even more as you don't have a lever feed.
    Great time savers tho...
    I had a tailstock turret on my last SB9. Was pretty handy for sure!
    Russ
    I have tools I don't even know I own...

    Comment


    • #3
      Originally posted by torker
      You are going to want to strive to keep all your tooling the same length if you can...and as short as possible.
      You'll find out why if you have to do a lot of multiples.
      On my Weiler turret machine I keep everything I can as even as I can.
      You would want that even more as you don't have a lever feed.
      Great time savers tho...
      I had a tailstock turret on my last SB9. Was pretty handy for sure!
      Russ
      Thanks Russ, yes I have been told that and that's why the arbors are longer than they really need to be.

      The arbors I purchased with the drill chucks are particularly long, hope they can be cut to length as well, don't know how hard they are. Perhaps I should have bought a couple of spares to play with!

      Comment


      • #4
        SM...they shouldn't be too hard. I have a couple on my Weiler that I shortened...they where pretty easy to cut.
        Mine where tapered where I needed to grab them so I pressed them into the chucks then put the chucks in the 3 jaw and parted off the arbors.
        Russ
        I have tools I don't even know I own...

        Comment


        • #5
          I've got two of those turrets. One in MS2 and one in MS3. I didn't use drill chucks, however. I used 5/8" 1144 TGP for the tool holders and drilled a hole in the end of each one for each drill bit size. Then, I put a set screw in each tool holder in order to hold the drill bit. I also made sure that the total length of all of the 5/8" tool holders and inserted drill bits were the same. One some drill bits, I had to grind a flat for the set screw to lock the drill bit in place otherwise the drill bit had a tendency to spin. For depth stops, I made brass collars, with a set screw, to put on each drill bit. I also made up a tool holder for a center drill in order to start the holes.

          Since I only have 4-jaw chucks, I also made up a collet to hold my bar stock. The collet was simply a round piece of steel with the correct size hole in the center. A set screw was put in the side to lock the bar stock in place.

          With a cutoff tool, mounted in the cross slide, the whole setup worked great.

          One thing I had to watch, however, was that there was a tendency for the entire turret to rotate in the morse taper socket if I wasn't careful. (i.e. I tried drilling too aggressively.) Make sure the drill bits are sharp and of a high quality.

          Regards,

          Brian
          Last edited by Rif; 07-01-2009, 11:27 AM.
          There are only 10 types of people in the world: Those who understand binary and those who don't.

          Comment


          • #6
            Pardon my ignorance, but I've never seen a turret up close and first hand.

            How are the tool holders held in the turret. That one hole visible in the 2nd picture doesn't appear to be tapered, nor does it look like there's sufficient length for morse tapers at any rate. Or is it some other taper?
            Lynn (Huntsville, AL)

            Comment


            • #7
              I've been eyeing those for a while but was worried about how accurate they are. Has anyone checked their's to see?

              With a full complement of razor sharp tooling loaded up, I'd be worried about working around it without a chainmail right arm protector.
              Milton

              "Accuracy is the sum total of your compensating mistakes."

              "The thing I hate about an argument is that it always interrupts a discussion." G. K. Chesterton

              Comment


              • #8
                Re: Tailstock Turrets

                Originally posted by DICKEYBIRD
                I've been eyeing those for a while but was worried about how accurate they are. Has anyone checked their's to see?

                With a full complement of razor sharp tooling loaded up, I'd be worried about working around it without a chainmail right arm protector.
                To address a couple of questions about these fixtures, the arbor holes are only about 1 1/4" deep and are held in with a set screw in the center circle. As to them being a little sharp to be around, you betcha, but, since the index lever is on the back side of the turret, you position the tools to face toward the back of the lathe. This way, you don't catch your hands on the tools when changing the tool positions.

                PS: Nothing hurts like snagging your hand on a sharp drill or tool bit. Not only does it hurt and take forever to heal up but you feel stupid until it does.
                Jim (KB4IVH)

                Only fools abuse their tools.

                Comment


                • #9
                  That's quite a large overhang . How accurate is it in use? Alistair
                  Please excuse my typing as I have a form of parkinsons disease

                  Comment


                  • #10
                    Originally posted by Scishopguy
                    To address a couple of questions about these fixtures, the arbor holes are only about 1 1/4" deep and are held in with a set screw in the center circle.
                    Yours must be different from this one, the holes for the arbors in this one are 1/2" deep.

                    Yes, the arbors are held in place with a set screw.

                    Originally posted by Alistair Hosie
                    That's quite a large overhang . How accurate is it in use? Alistair
                    On the 2 bought arbors the overhang is rather large that is why I plan to cut them shorter, as I already said.

                    The arbors I made myself from bar stock I turned to the 5/8" diameter required are a good "pop" fit itne the mounting holes. They "pop" very nicely when you pull them out. Again, they are held inplace with set screws.

                    Next job is to drill them for the drills/centre drills that I intend to use and cut them to the same overall length.

                    I was planning to use the arbor as a depth stop as well, rather than use a separate depth stop, but this may not be possible with all the drills I intend to use.

                    As for the MT2 mandrel spinning in the tailstock, this can of course occur with a single mandrel and drill chuck as well.

                    Some of the copper projectiles need a 2mm hole for the pen refill and for those smaller holes I intend to mount a pin chuck in the 5/8" arbor rather than rely on a set screw to hold such a small drill in place.

                    Comment


                    • #11
                      Originally posted by Alistair Hosie
                      That's quite a large overhang . How accurate is it in use? Alistair
                      Don't know yet how accurate it will be as I haven't used it yet, but when I use my single mandrel and 1/2" drill chuck together with the pin chuck for the 2mm drill (2mm drill has tendency to slip in the 1/2" chuck) the overhang isn't that much shorter.




                      That setup is quite accurate, so here's hoping that the tailstock turret will also be accurate.

                      Comment


                      • #12
                        On your arbors, you'll want to mill a flat (or drill a pocket) for the setscrew to bear against. If they're tight enough they "pop" when you pull them out, the slight deformation from the setscrew digging in will effectively lock them in place.

                        Doc.
                        Doc's Machine. (Probably not what you expect.)

                        Comment


                        • #13
                          Cool, I've been pondering the purchase of one of these from LMS. I was given one, started off as "stock cheap turret attachment" but the holes have been filled in with weld and modified to accept these (obviously) custom hex-rod tool-holders. Fellow who gave it to me has a Real Turret Lathe so he doesn't need the toy turret.

                          Thanks for the ideas on toolholders though!
                          This product has been determined by the state of California to cause permanent irreversible death. This statement may or may not be recognized as valid by all states.
                          Heirs of an old war/that's what we've become Inheriting troubles I'm mentally numb
                          Plastic Operators Dot Com

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                          • #14
                            I use my tailstock turret for a job I do from time to time. By adding the handle you see in the pix to replace the allen key you can really speed up the job.
                            ed

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                            • #15
                              Nice setup you have there, particularly like the digital caliper on the tailstock.

                              Not sure what the handle does? Do you use that to switch from chuck to chuck, if so why don't you use the lever at the rear?

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