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The machine is an '80s Mazak H-20 Horizontal Machining Center with a Fanuc 6M(A) control, Series 993 Ver 10.
The machine has been operating without the Stored Stroke Limit feature enabled (parm 002,...

Found the problem - the Q-Setter arm was not fully in its pocket, switch not being made.

Machine: Puma 8HC-3A
Control: Fanuc 15TF
NO DOCUMENTATION for this machine

Machine quit running spindle on either M03 or M04. At the back of spindle jaw draw-tube are 2 prox switches. Found...

I figured out the technique. I use the locking nut (item #44 on drawing) to force out the live center. Sorta like a collet in reverse.
Cheers,
Steve E

The control is Fanuc 15TF, & we do not use the conversational language feature of the control. We only use straight G-code.

Cheers,
Steve E

Is there a mechanism or procedure (other than beating the live center with a hammer) to remove a live center from the tailstock quill?

BTW, we do not have manuals for this model.

Cheers,
Steve...

Thanks, that is what I was looking for.
Steve

I create a variable in GCode: {CURNT_ROW=1}
I would like to monitor its value while single-stepping thru my program.
The Diagnostic window allows me to monitor (what I think are system ) variables,...

OK Guys,

I think I've got it. I was able to make the following changes to the MCODE file, & got this GCode prog to work as expected.

Thanks to all who contributed.


The working GCode prog:

Karl,
Yesterday before quitting I found an old post of yours, concerning this subject.


You found,IMHO, the greatest weakness in Camsoft. It doesn't do parametric programming. I wrote a number...

I'm using CNC-Lite v7.8 & would like to be able to set/change/evaluate variables & JUMP/GOTO (ALL IN GCODE) as the tests indicate. I've been able to create & change variables OK, as shown in the...

Currently my post will call out the feedrate on the 1st g01 line, but subsequent G01 lines will NOT display the feedrate. I would like for the post to show the feedrate everytime a G01 is called. ...

Thanks for the response. I will be trying your suggestions tomorrow, but I did come across information in the yellow Fanuc book that has allowed me to successfully make the G76 threading operation...

I need some help making G76 multi-repeat threading work.
The machine is a Daewo Puma 8HC-3A with Fanuc 15-TF control.
I want to thread 1/8” NPT on brass.
27 Threads Per Inch, thread lead =...

Pictures are off & on their way.
Thanks
Steve E

357994
Shots of the shifter cylinder dis-assembled.
Steve

We are located in South East Kansas. Machine Serial: 520005

Steve

Our Puma 8HC-3A is leaking hydraulic fluid around the actuating cylinder that moves the gear shift shaft in the head stock. We do not have any mechanical manuals, so we don't really know what is...

dhardt,
My bad - I said spindle, but was thinking the actuator. We think it is leaking, allowing hydraulic fluid to migrate along the outside of draw-tube, & get spun out when spindle is turning. ...

dhardt,

Thanks for the follow-up. We have been able to get a different live center in, & it was very simple - I just wiped out the tailstock bore with a rag & the new center went right in &...

My control did NOT like decimal point for the 'Dxx' parameter. I had to use 'D0500' for a .050" deep rough pass.

Here is my working code:



Thanks for the guidance.

Cheers,
Steve E

Yup, that was a typo. It should be Z-1.05 So I'll try that & see what happens, and if that doesn't work I'll remove the decimal points as suggested.

Cheers,
Steve E

dhardt,

Serial #520005 for our Puma 8HC-3A

From the drawings you sent it appears that we have the Programmable tail-stock. I used the item #55 Lock nut to force out the live center.
...

Trying to start using G71 multi-repetitive cycle on Puma 8HC turning center.

This is simple code I am trying:



G20 G90 M17
G28 U0. W0. T0600 S600
M42
G50 S2000

We have a broken live center in the tailstock of our Puma 8HC-3A, and do not have any mechanical drawings of the machine.

Can anyone help on methods of removing the damaged live center? And...

Are there specific HARDWARE requirements for a Fanuc 15-TF control to be able to execute Macro B? I know that certain option parameters must be set, but was wondering about hardware - extra memory,...

DHardt,

Thanks for the info. The Tulsa dealer came through with pdf's of operators manual, electrical manual, & parts manual.

That should be enough info for me to get this thing fixed.
...

DHardt,

Serial #520005

Cheers,
Steve

DHardt,

I'm talking with a Doosan dealer in Tulsa trying to get manuals.

On the M-code chart you sent I found that M80/81 lower/raise the tool setter arm. When I MDI in an M80, it lights the...

We have a Puma 8HC-3A, with Fanuc 15TF control. And NO MANUALS AT ALL.

The machine is running and we would like to use the tool setter arm for inputting offsets, but don't have a clue on how to...