Schaublin 125-CNC retrofit.

Hi Mark,

great video! As i said last time, i really like the Schaublin! I am also really impressed how cool and intuitive with nearly all cool features of today's needs the original controller was made! Impressive for the late 70's!

But in my workshop space = gold. So i would remount the Panel and the big cabinet and would order small powerful AC-Servos from JMC like on my FP3. So you only need a Power supply for a Mesa and the drivers only need a breaker, that also saves money and space in the cabinet. i think something like the 400w JMC AC-servos would be perfect.

And i would try to mount the Z-Axis servo different, maybe flipped an attache a tooth belt to the ball screw so no space is wasted and all is very compact.

Are there glasscales on the machine?

Looking forward for the retrofit, and of course the videos.



Cheers Tom

Hi Mark
Congratulations for the new Green Machine ! Any chance you could drag some of the German website Schaublin 125 conversion photos to here?
The missing tailstock

---

Now you can design an cast one that is more useful than the original part . Incorporate a bar puller - starwhell quill - etc. . Something like a 160 series tailstock .

Read your thinking of using a 7i97Bd. an wondered if you had considered using a 7i98 as used in "Retrofit of a Hitachi - Seikei VK45 Mill " . . Would also be interested in your thoughts about motor an drive for the spindle . Just interested in your thoughts .

Bob

Hi Mark

i would take the old stuff out. i would spend new motors and drivers to the machine. i mounted 3phase berger lahr stepper with leadshine drivers. these are ok, but max speed is 1500mm/min.
i may update to ac servos. the tool change takes tooo long with this 1500mm/min. 6000 would be nice!

the new elp series of leadshine would maybe a good choice?
www.leadshine.com/ProductSubType.aspx?ty...tage-ac-servo-drives

peter

Hi Tom,
No there are no glass scale encoders on there...yet
Mark

There is a 125CNC here with the starwheel tailstock

Reading around, the 2-speed star-wheel Schaublin tailstock appears to be very desirable.

My mate Jörg, who helped unload and drag it into the garage has a 125-CCN, the later model with the Fanuc controller. He has one of those star wheel tail stocks in his. I guess the pneumatic tail stock was not that popular, s all the later ones I have seen have the star wheel one. I plan to borrow Jörgs tail stock and copy it.
Mark.

trilobyte wrote:

Hi Mark

i would take the old stuff out. i would spend new motors and drivers to the machine. i mounted 3phase berger lahr stepper with leadshine drivers. these are ok, but max speed is 1500mm/min.
i may update to ac servos. the tool change takes tooo long with this 1500mm/min. 6000 would be nice!

the new elp series of leadshine would maybe a good choice?
www.leadshine.com/ProductSubType.aspx?ty...tage-ac-servo-drives

peter

Thanks for the feedback Peter. For those who dont know, Peter has the same 125-CNC, or a slightly earlier model with the gear train xis drive. I will be trying to copy his shoe horning of everything into the Pneumatics compartment, to delete the E-cabinet.
Mark

What size are the actually mounted servos?
flange, shaft, holding torque, rpm ?