Can not clear X axis values after running a lathe program.

[agoodevans]

I've tried Powering Off/On,

Work co-ordinates show X values as negative going up away from job. Machine values are correct, jog movement is correct. How can I flip the work X values back to positive values? From reading on this forum, it appears to be a G54 issue.

I have tried adding another G code to try and clear it in the MDI. Prolight Lathe 2 axis. G54 is black at bottom of screen. Is that active on not? Running Core 1.26, Ver 3.40

Any advise would be appreciated.

Thanks

 

[breezy]

F4 screen is where you set G54 to G59. If those G numbers show zero for all axis then your work coordinates start at your machine X, Y, Z zero position. Any numbers in any of axis positions will offset your work coordinates by that amount.

I use G54 to offset the corner of the spoil board from the machines zero position, as G54 is active all the time. Only when you select another G55-59 do they become active.

Now G54 can show red when you do a G92 to set a temporary offset. In my case when I zero probe the Z axis to set the top or bottom of the job as the case maybe.

Regards,

Arie.

 

[agoodevans]

Thanks. So if I use the MDI the run a G55 code that should clear and make G54 inactive. On my lathe I don't have a Zero option for the X axis and the offset values are only for the z axis. So making my X values positive instead of negative is problematic. I will try a few things as you suggest and maybe come back with images.

Cheers

John.

 

[agoodevans]

Thanks for you help Arie. My lathe has the tool behind and the tool setting had change to the front. Firmware upgrade?

All good, appreciate your ideas.

John.

 

[breezy]

Glad you fixed it.

Issuing a G55 on the MDI would have swapped G55 for G54 but depending on the values set in both of them, may not have made any difference to your problem.

Regarding your X axis there should be a machine zero somewhere in is travel (center of the spindle?), otherwise you won't have a reference for your X movements.

Regards,

Arie.