After my Optimum D 240 X 500 Vario for almost six years have trouble operating, it was all the more astonishing, not to say frustrating that I have in the past few days when straight turning constantly produces cones. Since I had already solved the third time the headstock completely and thereby reduce the ever-FU had to reach to the rear screws, I was irritated by the whole immensely, because it's also brought the sample turning no improvement. When I opened the garage door, my eyes fell inevitably on my best friend, the thick rubber hammer, which has been so much directed by a single blow. Well, this time, only the front screws loosened and shortly afterwards he was already used, a courageous blow against the head stock and the screws only slightly vergespannt. Even when turning I could see the chip that the rubber hammer method had not failed to achieve, but control is better, I thought, and lo and behold, front 29. 50 mm, 29 lathe 3 jaw chuck. 50 mm in the feed-back!. The important thing is indeed just here that you know what you are doing and where it strikes, because only random turn on the machine could indeed guaranteed reached the opposite! Hopefully, the hammer can only now time to recover for a long time because your machine has noticed is that it is hoe, if you do not spurt!. The important thing is indeed just here that you know what you are doing and where it strikes, because only random turn on the machine could indeed guaranteed reached the opposite! Hopefully, the hammer can only now time to recover for a long time because your machine has noticed is that it is hoe, if you do not spurt!. The result is that eventually turned out better than many times in my adjustment of the machine a few years ago that I would not have thought possible. can I have it no longer held in bed heutemorgen am to 6 ° ° Clock get out of bed, absolutely must affix two brackets on the gearbox to ensure that it never again be adjusted. If, like me finds that the longitudinal tension produced cones, should be harnessed to sample a large slice of the lathe 3 jaw chuck and turn this plan lathe 3 jaw chuck. With Schraubknaggen as I want to make me out of key steel C45 10 X 20 mm, can all follow without a rubber hammer and faster focus. (Pictures when I'm ready). In general I think for a long time using an optical testing device, such as can a pilot laser to verify what a lathe 3 jaw chuck or milling head and adjust. Here I have in mind, a calibrated laser beam (pointer) in an MK incorporate four cone and the laser at a 45 ° slanted glass with cross hairs in the 2-3 MK cone in tailstock take leave. Such a device could also be used when buying a machine and to check, but it is a precise alignment later in the actual site does not come around anyway. (Today 07:15) Hartmut wrote: If, like me finds that the longitudinal tension produced cones, should be harnessed to sample a large slice of the lathe 3 jaw chuck and turn this plan lathe 3 jaw chuck. With the laser, which is I think sometimes nothing. That would only have a very long way. And once adopted, the headstock would be if twisted, resulting ne Abweicheung of 5 / 10 mm, counting time back Overnight, jet set, how much the rotation makes the headstock, there will be only a few 1/100mm. And all failed because the fact that the laser beam is too thick and you all alone on Ner scale could not even read properly. . The spindle is a mechanical device, installed on a machine tool, which can be mounted on a turntable, which allows you to tighten and hold any piece of circular, square or hexagonal with a certain diameter in order to be able to perform up / with it a certain type of work lathe 3 jaw chuck. In common parlance, however, the term "spindle" is often used synonymously with "chuck". There are self-centering clamping with three or four jaw (or jaws). The most common is used on hand-held drills, twist drills normally can tighten with a diameter of 1 to 13 mm. There are chucks for lathes or other machines, with 3 or 4 jaw or jaws. The first help block centered, circular or polygonal parts with a number of sides divisible by 3. The 4-jaw chucks are used for fastening pieces circular, irregular or polygonal cross-section with a number of sides divisible by 4 lathe 3 jaw chuck. These also allow the attachment of the piece with the axle off-center. In power tools (drills, milling) spindle tip a glass or other tool and the clamping is done manually or through a gear wrench. In machine tools, the spindle can a tool or the workpiece. The tightening (in the case of chuck) is performed by means of special keys with square section, which act on bodies at the radial displacement of the jaws. The key action of these bodies (like screws but also call for a square section) causes the rotation of an element (inside the spindle) of flat form and which bears a spiral, with rotation piece, causing the synchronous movement of the jaws, so that the piece to be tightened between them is automatically stopped in the middle of the spindle. But there are types of non-self-centering chucks in which each jaw is provided with independent movement in order to secure the workpiece with its axis off-center in the event of particular types of processing (eg for the cams) lathe 3 jaw chuck. Text is available under the Creative Commons Attribution-ShareAlike; additional terms may apply. See Terms of Use for details. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc. . .