Knuth Mark Super CNC Retrofit - need some help with my first LinuxCNC

Hello,

i have found it very quick... it is as you say... it is controlled by analog signal...

4 Analog Out... 3 for the Axis and 1 for the Spindel.

So what Board did I need to buy?
This one is the "Minimum"?  Link

Thank you very much.
Martin

YES that is analog for sure, and YES a Mesa 7i97T would be the elegant solution !
That is if 16 inputs and 6 outputs are enough.
If not, add a Mesa 7i84 for 32 more inputs and 16 more outputs, and very easy to wire to Mesa 7i97T with a cut down LAN cable.

Thank you very much. The Mesa 7i97T card is very good for my machine, because every analog output come with a separate drive enable output.
So i have al the 6 extra outputs for other functions... think this is very good for the first start.

Can you give me a hint were i can read something about setup the axis with encoder feedback in LinuxCNC.
As it is a closed Loop Sytstem i think this is the Most difficult but very important thing in this setup... to get a very well runing machine.

Have a nice day
Martin

Yes of course, here is detailed wiring and testing and tuning howto, let me know is something seems strange or i might improve.
Thank you.
forum.linuxcnc.org/10-advanced-configura...ning-detailed-how-to

Hi Tom the picture Matin  shows in the previous message is not for the servo drives. I open his servo drive manual and it indicates that the drives are step direction. Here is snap shot of the drive schematic. My advice is to hold on before he makes purchase of an analog messa card. 





 

tommylight wrote:

Not the same drives, pretty sure, this one is step/dir only, the above is analog only.

The manual is not for those drives as stated above, it is for something similar but new-ish.
The picture of his actual machine shows wiring and labeling for analog +-10V control, and so does the first PDF with the machine wiring schematics.