Beautiful lathe Andy and quite a heavy one! We have two big hydraulic tracer lathes (one weights almost 10000 kg and the other 5000 kg) that are waiting for a LinuxCNC conversion. The challenge is that these have to be modified to have the perpendicular way since now it's angled to suit the copying function. I guess with non trivial kinematics this could be avoided but anyway a turret has to be done.
Both lathes featured electromagnetic actuated clutches to change through the different speeds. A really good system, Also the big 3 phase spindle motor has two speeds. One lathe has levers and switches for the positioning logic, and the other one a big celuloid with grids printed to accomodate little pieces of tape that would allow or not a light to activate a photosensor. A pain to program those big lathes! I should upload some pictures when we start the conversion. 2015-09-04 12:28 GMT-03:00 John Alexander Stewart <[email protected]>: > Hey Andy - reading your web page - Ok - the Emco Compact-8 was the one > copied extensively overseas. It was made in Austria originally. > > The Compact-8 is approx 8" diameter swing and 18" between centres. The > Asian 7x lathes are NOT equivalent, and are NOT copies of the Emco > Compact-8. Some of the 9x20 Asian lathes were pretty good copies, some not > so. One I saw in a store had the tailstock rattling about with about 1mm > play. Some have various spindle threads, some have quick change gearboxes, > etc, etc. > > I have two Austrian made Compact-8 lathes, and I *really* like them. Note > that none have the vertical head on the back of the bed; that is a bit of > an issue but people keep trying it. (One of my Compact-8s did have a > vertical head added, but it's when my workshop in NL was about the size of > a single bed, so I had only 1 machine tool and a small bench; it has not > had this vertical head on it in close to 30 years) > > If/when I downsize, the old english iron (Kerry, Centec, etc) will go, but > one of the Emco Compact-8s will remain, along with one of my CNC mills; > we'll see which one. That's if, no plans but you never know... > > Just FYI - John. > > > > > On Fri, Sep 4, 2015 at 11:12 AM, andy pugh <[email protected]> wrote: > > > I am converting a Holbrook Minor lathe to CNC. > > First stage, making it run on domestic power: > > http://bodgesoc.blogspot.co.uk/2015/08/holbrook1.html > > > > -- > > atp > > If you can't fix it, you don't own it. > > http://www.ifixit.com/Manifesto > > > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
