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  • I have milled the top slide before. Over night the inner tensions can be released. Afterwards the dovetail was milled with undersize.

    After another night the finishing is done.
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    Many greetings from the southwest of Germany.
    Bruno
    http://www.mueller-bruno.de

    Comment


    • Great work Bruno. Also good job on the drawings. You say you used pencil, did you ink them afterwards? I ask because they have reproduced on the computer screen very well.
      West Sussex UK

      Comment


      • Originally posted by Alan Smith View Post
        Great work Bruno. Also good job on the drawings. You say you used pencil, did you ink them afterwards? I ask because they have reproduced on the computer screen very well.
        I scanned the drawings and then improved them with an editing program. I reduced the brightness a bit and set the contrast to the highest level.
        Many greetings from the southwest of Germany.
        Bruno
        http://www.mueller-bruno.de

        Comment


        • Now I would like to show you more drawings. Here are the feed spindles of the cross-slide.


          Steel S355JO+C (St.52-3) 12mm was the starting material. Clamped in the collet chuck on the lathe and planned and centered on both sides.

          The paragraph 8mm- 19 long and 6mm -11 long was turned and the thread M3 12mm deep was cut.

          Change the collet chuck to 8mm and clamp it on the turned 8mm spigot. On the other side, hold the roller punch against it.

          Turn the threaded part with Lynette support to 8mm and cut the undercut for the thread run-out to 6.5mm,

          The thread M8 was cut almost finished on the lathe with the lead screw and thread steel. I supported the spindle with the rolling lynette and cut the remaining 1/10mm with the die. The tips were honed with fine emery.
          Many greetings from the southwest of Germany.
          Bruno
          http://www.mueller-bruno.de

          Comment


          • Click image for larger version

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            Attached Files
            Many greetings from the southwest of Germany.
            Bruno
            http://www.mueller-bruno.de

            Comment


            • Click image for larger version

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              Many greetings from the southwest of Germany.
              Bruno
              http://www.mueller-bruno.de

              Comment


              • The cross slide carrier .
                From a grey cast iron block of 80 x 80 x 120mm I first milled the dovetail and the groove for the thrust spindle. The contours of the beam were drawn and cut to size on the band saw. Then the dovetail guide was milled. With grey cast iron, there is no need to fear any winding.

                The weekend passed and the chips were made. I clamped the cross slide carrier on the cross slide of the lathe and predrilled the hole for the guide column.
                The cross slide carrier remains on the cross slide of the lathe until the final machining with a reamer.


                I was still waiting for a 30mm reamer, so I cannot continue to work on the facing support beam.

                Instead I have pre-milled the plansupport.

                For the dovetail to fit I need the plansupport carrier.But it is clamped on the lathe.
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ID:	1897507The cross slide carrier when using the reamer on the lathe .
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                Finished machining.
                Many greetings from the southwest of Germany.
                Bruno
                http://www.mueller-bruno.de

                Comment


                • Click image for larger version

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ID:	1897512 Test assembly and angle control on the lathe.
                  Many greetings from the southwest of Germany.
                  Bruno
                  http://www.mueller-bruno.de

                  Comment


                  • The cross slide was pre-milled and left to rest overnight to relieve internal stresses.
                    After the cross slide carrier was finished, the dovetail could also be milled and adjusted in the slide.
                    Klicke auf die Grafik für eine vergrößerte Ansicht  Name: DSCN2091.JPG Ansichten: 0 Größe: 1,22 MB ID: 1897515Klicke auf die Grafik für eine vergrößerte Ansicht  Name: DSCN2095.JPG Ansichten: 0 Größe: 1,28 MB ID: 1897516
                    Pre-milled cross slide.
                    Klicke auf die Grafik für eine vergrößerte Ansicht  Name: DSCN2099.JPG Ansichten: 0 Größe: 1,27 MB ID: 1897517
                    Sliding plate and spindle for the cross slide.
                    From scale line to scale line the graduation corresponds to a diameter deviation of 0.1mm.

                    Klicke auf die Grafik für eine vergrößerte Ansicht  Name: DSCN2114.JPG Ansichten: 0 Größe: 1,19 MB ID: 1897518 Complete cross slide
                    Klicke auf die Grafik für eine vergrößerte Ansicht  Name: DSCN2119.JPG Ansichten: 0 Größe: 1,19 MB ID: 1897519
                    The connecting part between plan and top slide is still missing.
                    Last edited by Bruno Mueller; 09-09-2020, 07:02 AM.
                    Many greetings from the southwest of Germany.
                    Bruno
                    http://www.mueller-bruno.de

                    Comment


                    • The connecting element between cross slide and top slide consists of two parts.
                      A tension bolt with conical bore and a screw-in bolt with a corresponding taper.
                      The screw-in bolt is made of tool steel 115CrV3.The M10x 1 thread was cut on the lathe with the leading spindle.
                      The 6mm hexagon socket was broached.
                      Afterwards the screw-in bolt was hardened and tempered.
                      The guide surfaces were then ground.
                      The tension bolt was not hardened.

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                      Last edited by Bruno Mueller; 09-09-2020, 07:06 AM. Reason: Add a drawing.
                      Many greetings from the southwest of Germany.
                      Bruno
                      http://www.mueller-bruno.de

                      Comment


                      • Click image for larger version

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ID:	1897525 The cross slide is finished.

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ID:	1897526 Original and replica.

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ID:	1897528 Assembled on the lathe.
                        Many greetings from the southwest of Germany.
                        Bruno
                        http://www.mueller-bruno.de

                        Comment


                        • Click image for larger version

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ID:	1897532 The part still got the correct color design.
                          Many greetings from the southwest of Germany.
                          Bruno
                          http://www.mueller-bruno.de

                          Comment


                          • Great, I enjoyed watching your work Bruno, thanks!
                            Ivan.

                            Comment


                            • Originally posted by Bruno Mueller View Post
                              Click image for larger version

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                              Kind of looks like a cross between a round column mill and a jewelers lathe but it looks very sweet. Great job on the machining and keep posting your work.
                              OPEN EYES, OPEN EARS, OPEN MIND

                              THINK HARDER

                              BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE

                              MY NAME IS BRIAN AND I AM A TOOLOHOLIC

                              Comment


                              • Originally posted by Bruno Mueller View Post
                                Click image for larger version

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ID:	1897532 The part still got the correct color design.
                                Nice work but I'm intrigued. One round column and no key way, how does it keep aligned?
                                Helder Ferreira
                                Setubal, Portugal

                                Comment

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