Fanuc 18t live tooling program help

[rwpbrian]

Hello
I was wondering if anyone could give me a hand programming with this live tool.
The machine I am running is a Hardinge T42 with a Fanuc 18T controller.
I have been programming CNC for about 10 years but don't have much experience with live tooling. I went looking for the programming manual for this machine but it went "missing" a few years ago.
A guy at my shop says a place he use to work at programed these flats using polar interpolation.
I've been looking online but haven't found much info
I attached the live tool I am using and the part I am working on

Polar interpolation
G112 (ACTIVATE POLAR INTERPOLATION)
G113 (CANCEL POLAR INTERPOLATION)

This is how i figure the program would start
N1
G97 S1500 M54 (LIVE TOOL REVERSE/COOLANT ON)
T101
G0 X Z M23 (START CONTOUR MODE)
C0
G1 G98 G112 (ACTIVATE POLAR INTERPOLATION)


Any help would be great
Thanks
Brian

[angelw]

Hello
I was wondering if anyone could give me a hand programming with this live tool.
The machine I am running is a Hardinge T42 with a Fanuc 18T controller.
I have been programming CNC for about 10 years but don't have much experience with live tooling. I went looking for the programming manual for this machine but it went "missing" a few years ago.
A guy at my shop says a place he use to work at programed these flats using polar interpolation.
I've been looking online but haven't found much info
I attached the live tool I am using and the part I am working on

Polar interpolation
G112 (ACTIVATE POLAR INTERPOLATION)
G113 (CANCEL POLAR INTERPOLATION)

This is how i figure the program would start
N1
G97 S1500 M54 (LIVE TOOL REVERSE/COOLANT ON)
T101
G0 X Z M23 (START CONTOUR MODE)
C0
G1 G98 G112 (ACTIVATE POLAR INTERPOLATION)


Any help would be great
Thanks
Brian

Hi Brian,
To use Polar Coordinate Interpolation, the linear and rotation axes being used must be set in parameters #5460 and #5461 beforehand.

The format for Polar Coordinate Interpolation is as follows. The Workpiece Program is prepared as if programming a component in X and Y except with a Turning Centre the X is programmed in diameter and C replaces Y and is programmed in Radius.

G00 X120.0 C0 Z_ (POSITION TOOL TO START POSITION)
G12.1 (START POLAR INTERPOLATION INTERPOLATION)
G42 G01 X40.0 F _ (APPLY TOOL RADIUS COMP IF USED)
C10.0
--------
-------- (PART PROGRAM AS IF PROGRAMMED IN X Y FOR A MACHINING CENTRE, EXCEPT THAT X IS PROGRAMMED IN DIAMETER AND C REPLACES Y AND IS PROGRAMMED IN RADIUS)
--------
--------
G40 X120.0 (CANCEL TOOL RADIUS COMP IF USED)
G13.1 (CANCEL POLAR COORDINATE INTERPOLATION)
Z __
X __C __

Circular Interpolation moves (G02/G03) can be programmed with with either I and J in G17 plane, or R in the normal manner.


Regards,

Bill