Schaublin 125-CNC retrofit.

I hate to divert Mark's thread on a tangent... but how do you GOTO in LCNC?  I thought that was verboten because reasons.

Or is this for a non-LCNC machine?

I didn't realize that, doh, I had been learning the fanuc code for another project. 




O<jog_tool_up_down> SUB

#<_halui_input1> = #<_ini[halui.jog.tool_up]>
#<_halui_input2> = #<_ini[halui.jog.tool_down]>

(Initialize block numbers)
#100 = 0

WHILE [#100 LT 1]

(If halui input1 is triggered, jog tool up)
IF [#<_halui_input1> EQ 1] AND [#<_halui_input2> EQ 0] THEN
G28 (Move to tool change position)
M6 T[ATC_NEXT]
M61 Q[ATC_CURRENT]
G43 (Load and store the tool offsets)
#100 = 1
ENDIF

(If halui input2 is triggered, jog tool down)
IF [#<_halui_input1> EQ 0] AND [#<_halui_input2> EQ 1] THEN
G28 (Move to tool change position)
M6 T[ATC_PREV]
M61 Q[ATC_CURRENT]
G43 (Load and store the tool offsets)
#100 = 1
ENDIF

ENDWHILE

(Ensure a tool is set in the turret)
IF [ATC_CURRENT GT 0] THEN
M6 T[ATC_CURRENT] (Set the current tool in the turret)
ENDIF

O<jog_tool_up_down> ENDSUB

 

Muzzer wrote:

You could simply replace the synchro resolvers with a conventional encoder and drive the motors with a DC servo drive. I have the cncdrive DG4S servo drivers in my 1983 Shizuoka mill . They work fine with the SEM brushed motors and Heidenhain clone encoders originally fitted. The original tachos are no longer required with modern digital drivers, but I left those where they were due to the way they are fitted within the motors.

The original controller in the Shizuoka drove analogue servo amplifiers and DC brushed motors but the Micon control software dealt in digital units of course. So the initial output from the controller was step/dir, with a "positioner" module to compare that with the encoder feedback and generate an analogue (+/-10V) signal for the amps. So step/dir interfaces in analogue servo systems are not unheard of.

Hi Muzzer,

Are you still running the Linux CNC - MESA - DG4S setup on your lathe?

Thanks,

Frans
 

Hi Frans, what do you mean by DG4S?
Mark

Mark -

I think he's referring to these
[url] www.shop.cncdrive.com/index.php?productID=366 [/url]

That Muzzer mentioned in this thread back in 2021.  Nothing to do with you or the Schaublin I suspect.

 

Thanks. I used AC servos.