Changing sign of axis

[DW]

Hi,

 

We were trying to write a program for an older mori that has the sign of the x axis reversed (negative instead of positive). Is it possible to change this in the machine definition?

 

Thanks,

DW

[Greg Williams]

Try this

 

dia_mult : 2 #Multiplier for output on X axis (Neg. switches sign of X)

 

to

 

dia_mult : -2 #Multiplier for output on X axis (Neg. switches sign of X)

[Bryan Johnson]

you will also need to reverse G2/3 and the sign for "I" on arc moves.

[twr]

you will also need to reverse G2/3 and the sign for "I" on arc moves.

I know this is a old thread but how is this done? Do i just  change the CW  with CCW or something else?

 

 

 I just bought a old mori sl4 and it has X axis reversed compared to newer lathes. Plus what is posted above.

 

 sxg02   : "G2"       #Circular interpolation CW

sxg03   : "G3"       #Circular interpolation CCW

# --------------------------------------------------------------------------

# Motion G code selection

sg00    : "G0"       #Rapid

sg01    : "G1"       #Linear feed

sg02    : "G2"       #Circular interpolation CW

sg03    : "G3"       #Circular interpolation CCW

sg04    : "G4"       #Dwell

sgcode  : ""         #Target string

 

 

Also how is  "I" on arc moves changed ?

[absolute technologies]

 

I know this is a old thread but how is this done? Do i just  change the CW  with CCW or something else?

 

 

 I just bought a old mori sl4 and it has X axis reversed compared to newer lathes. Plus what is posted above.

 

 sxg02   : "G2"       #Circular interpolation CW

sxg03   : "G3"       #Circular interpolation CCW

# --------------------------------------------------------------------------

# Motion G code selection

sg00    : "G0"       #Rapid

sg01    : "G1"       #Linear feed

sg02    : "G2"       #Circular interpolation CW

sg03    : "G3"       #Circular interpolation CCW

sg04    : "G4"       #Dwell

sgcode  : ""         #Target string

 

 

Also how is  "I" on arc moves changed ?

 

for X- on your Mori change the following line in your post:

 

dia_mult     : -2     #Multiplier for output on X axis (Neg. switches sign of X)

 

a value of 1 is for Radius programming, a value of 2 is for diameter programming and a -2 will output X- on diameter

 

Hope this helps!

 

Cheers!

Len Dye

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[twr]

Hi i changed dia_mult     : -2     #Multiplier for output on X axis (Neg. switches sign of X) and it posts - X now!!!

Do i have to switch G2 cw and G3 ccw to?

[absolute technologies]

Hi i changed dia_mult     : -2     #Multiplier for output on X axis (Neg. switches sign of X) and it posts - X now!!!

Do i have to switch G2 cw and G3 ccw to?

probably you'll need to change CW & CCW as well as reverse the "I" output too if you're using I & K but you should write a little test program and find out what it needs.

 

Cheers!

Len Dye

[twr]

Hi i did switch G2 and G3 around  and i am using I & K  so i will have to figure that out yet!!