reverse sign on Y axis ? ( lathe )

[deadlykitten]

hello, i prepare milling on lathe. Part is simetrical : left / right

example 1  : i use Y axis to mill "right" side :  M110, C0    , M147, G138, go go Y_toolpath_1 :)
example 2a : for the "left" side :                M110, C0+180, M147, G138, go go Y_toolpath_2 :)

...how part is simetrical, "Y_toolpath_1" and "Y_toolpath_2" are sign reversed on Y

example 2b : i wish  to reload "left" side like this : M110, C0+180, M147, G138, change Y_axis_orientation, Y_toolpath_1 ?

...this trick should output same movement as "example 2a"
...so to skip writing code for Y_toolpath_2 :)

... toolpath's points have different Z coordinates; otherwise G138 is not required
... how toolpaths are "sign reversed", there may occur " climb / conventional milling " differences
... for my part this does not matter, because tool works only in front ; if it would, than this thread would make no sense,
.........and Y_toolpath_1_start_position = Y_toolpath_2_end_position
.........or Y_toolpath_1 = 2_htaploot_Y; kindly

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[deadlykitten]

short version : is it possible for the turret to go down on such a code : G138 , G00 Y10 ?

[deadlykitten]

I think that there is a parameter that will allow you to do that if you check the Y-axis parameter page.,

i will search 4 it ... brb soon

[deadlykitten]

I think that there is a parameter that will allow you to do that if you check the Y-axis parameter page.

hello mr Wizard .. i have attached the pages ... please, can you pin point me ?

I think there's something on the Optional Parameter: 1st/2nd Spindle parameter page

hy teahole ... i have attached the pages ... please, can you pin point me ?

master question : this pages, from parameters, are somehow explained into a manual ? so, to know what each one does ?

[deadlykitten]

Example, I change bit 52 bit 2 on every p300L I work on now.

hy again teahole, i was curios what this 52.2 does, and i searched a bit ... it targets label / text color

i also scrolled a bit into the list about " Optional Parameter ", and i found this :

36.6 > Sub/main spindle side mirror image coordinate system selection (Y-axis)
36.7 > Main spindle side mirror image coordinate system selection (Y-axis)
38.2 > Y axis graphics sign direction determination
63.1 > the screen display OFF when power saving alarm

i changed 36.6 and 36.7 from 0 to 1, power off / on the machine, and after : G138 and G00 Y10, but turret raised ... so i put them back how they were before
i am not sure that is possible to auto-mirror toolpaths ...

38.2 and 63.1 i could not modify, because of an alarm ... maybe is not possible in my machine

this 63.1 sounds nice .. well, i can't activate it; beside it and 52.2 are there other " nice bits to change " ? kindly !

[deadlykitten]

hello again, i buried my self into optional parameters area : long word, word & bit, and i found this :

[number] [bit]    [iv]    [Contents of Parameter]

    34     0        0    Revolution per feed dwell (0:invalid / 1: valid)
    35     6        0    Sub/main spindle side mirror image coordinate system selection (Z-axis)
    35     7        0        Main spindle side mirror image coordinate system selection (Z-axis)
    36     6        0    Sub/main spindle side mirror image coordinate system selection (Y-axis)
    36     7        0        Main spindle side mirror image coordinate system selection (Y-axis)
    37     3        0    Torque skip command sequence restart movement (1:actual position/ 0:Axis move)
    55     1        0    No load detection (0: execute / 1 : No execute )
    56     1        0    No load detection (0: execute / 1 : No execute ) (L-side)
    63     1        0    the screen display OFF when power saving alarm

( iv = initial value )

... [ 34.0 ]
i program dwell like G04 F=revolutions * 60 / rpm
i guess, turning this bit to 1 would simplify above code : G04 F=revolutions
i believe that this may cause some conflicts with a CAM software, so i better leave it like that

does someone knows what this does ?
... [ 35.6 ] [ 35.7 ] [ 36.6 ] [ 36.7 ]
......... maybe they help reverse Y axis
... [ 37.3 ]
......... if i change it to 1, will machine move under restart ? and if so, what is the purpose ?
... [ 55.1 ] [ 56.1 ]
......... no load detection where ?
... [ 63.1 ]
......... did this worked for your machines ? kindly !

[deadlykitten]

hello, i don't have such a page as " optional para 1st-2nd spindle " ; i have attached a list with all my optional parameters ...

i also searched for the manual, to find the page that you send me, and i did not find it ; i have extracted " SECTION 46 MIRROR IMAGE FUNCTION " from the " SPECIAL FUNCTIONS MANUAL " and it does not look like yours

I also change the pulse handle direction with spindle mode. That way the handle is always negative towards the chuck.

my hand wheel is negative toward the chuck ... this " mirror / G62 " ain't it a function for lathes with 2 spindles ?

i also done this :

... change 36.7 " Main spindle side mirror image coordinate system selection (Y-axis) " from 0 to 1
... power off / on
... MDI
... G62 Y0
... G138
... G00 Y10 ( turret up )
... G136

... G62 Y1
... G138
... G00 Y10 ( turret still up )
... G136

if mirror mode was designed for machines with 2 spindles, than it makes sense ... otherwise i do not know what to say / my lathe has only 1 spindle; however, even so, what targets bit 36.7, and why did i not receive errors when i input "G62 Y0" and "G62 Y1" in MDI ? ... kindly !