clockwise/counterclockwise button in tool setup not working?

[oharajesse]

Hey guys, i'm trying to set up my lathe with the turning tools facing up and have the spindle turn counter clockwise so that the cut pressure pushes the turret down instead of potentially lifting it up like its normally set up.

i've messed with tool orientation, setup, checked and unchecked the clockwise radio button. flipped the X axis in job setup, it still posts M3 instead of M4. what gives?

[engineguy]

@oharajesse 

Do you want your Lathe to have the turret/toolpost to the rear with the tool facing upwards as in the image below ???

If yes then the code for the small test cut shown would need to be something like this yes ??

%
O7773 (MAIN SPINDLE, UPPER TURRET)
N10 G99 G18
N11 G21
N12 G50 S6000
N13 G28 U0. W0.

(PROFILE ROUGHING1)
N14 T0101
N15 G54
N16 M8
N17 G99
N18 G97 S1179 M4
N19 G0 X54. Z5.
N20 G50 S5000
N21 G96 S200 M4
N22 G0 Z0.5
N23 X51.
N24 G1 X49. F1.
N25 Z-30.
N26 X51.
N27 G0 Z0.5
N28 X47.
N29 G1 Z-30. F1.
N30 X49.
N31 X51. Z-29.
N32 G0 Z0.5
N33 X46.
N34 G1 X45. F1.
N35 Z-29.8
N36 G18 G2 X45.4 Z-30. I0.2
N37 G1 X47.
N38 X49. Z-29.
N39 G0 X51.
N40 Z0.5
N41 X54.
N42 Z5.
N43 G97 S1179 M4

N44 M9
N45 G28 U0. W0.
N46 M30
%

Then have a look at the attached Fusion file, the setup used produced the above code using the standard Fanuc Turning PP, the key to this setup is the tool settings, when you create your tool then do it as if the toolpost is at the front with the tool facing down so if rotated round the Z axis to the rear then the tool will face up, not many lathes that I know of are set up with the tool at the rear and facing up, one that does come to mind are Boxford lathes!!

Anyway, hope this helps you some.

Regards

Rob

[Anonymous]

CW / CCW check box doesn't work but it should. Using left hand tool oriented as you show in your picture and mounted on upper turret runs with M4.

In most decent lathes on the market, you can setup tool either way by relocating wedges in turret or block on lower or upper turret in OD or face orientation.

In reality, right hand tool mounted in lower turret and running with M3 has insert pointing up, when same tool is rotated 180 degrees and mounted in upper turret, insert points down and tool still runs with M3.

Dysfunctional CW / CCW box is a bug, choice of left or right hand tool should trigger CW / CCW rotation and not the upper or lower turret.

Actually, because left and right hand tools can be used with M3 or M4, in upper or lower turret user should have option to choose which way spindle turns by checking or clearing CW / CCW box.

[Anonymous]

I tested tool orientation as left or right and it does respond correctly to CW / CCW spindle rotation.

I encountered earlier post that claimed checking or clearing CW / CCW box had no effect on M3 / M4 output.

If there was a bug it looks like it got fixed , I can't produce wrong output based on tool orientation and box setting.

[oharajesse]

bingo! thanks for that 🙂

[Ketherton21]

ive posted about this issue in the past. and almost the same exact type of bug with switching a tool between static and live.

the easiest trick I have found is to change the tool number AND cw/ccw or live/static, click ok. and then change the tool number back.