[CNC_Tools]

Hi Guys,

I need to know how to re-zero my axis after a turret bump. I have retrammed the turret to .0002 across the face and centered on a bar holder. I need to know how to reset the home switch offsets so X0 in the tool offset page is really X zero. Also where is the Z offset referenced from? The switch or the spindle nose? Akira Seki has been no help and there is not a local dealer in my area (phoenix)

Machine control is a Fanuc OT-C with std encoders (not absolute)

Thanks in advance

Chris

[underthetire]

Check your fixture offset. If it was reading x0 on centerline, I'm betting someone put a fixture offset amount in X. Not common on a fanuc to be X0 on centerline unless somebody changed a fixture offset. Grid shift parameter cam make small changes, no 0 books here.

[CNC_Tools]

Really? All 3 of our lathes have OT-c controls on them and I always run my drills with a zero in the x offset register for centerline? The turret got bumped out about .020 and the drills were low. Re-trammed the turret, but now it's about .030 above where a zero offset would put it. How do I change this so my drills run tru on center with a zero X workshift and a zero x offset register. That's the way that it would logically be as far as any lathe I've ever seen.

Chris

[underthetire]

You will need to adjust the grid shift parameter. Can't tell you what it is since I don't have 0 books here. On 15,18,21 newer would be parameter 1850.

[zavateandu]

normaly after u make the center line ,you should go on the offset page and on the x workshift coordinate must put the machine coordinate for the x axes.i always do in this way.
so when i call up x0 in MDI the machine goes to the machine coordinate position that i typed on workshift for X