[MazakMack]

We have a Mazak SQT 18M Mark 2 with live tooling.The spindle bearings went out on it and we had to ship the entire spindle cartridge(spindle,motor,motor-jacket,actuator, ect.)to Kentucky for bearing replacement.
When it was returned, we had a Mazak tech install it for warrenty reasons.
All is good except the "C" axis is not at the same Home position as it was prior to rebuild.Now our problem is all of the prior progams(15 years worth) wont oreintate to their proper position and now we have to be careful with chuck jaw clearances and other issues.This will cause a lot of problems as you try to redo programs and know which have been done and which havent.
The tech who installed the spindle called and tried to find a solution to this but was unable to get one.
Is there a Parameter that can be changed to comp the amount of difference between the new home position and old home position in the "C" axis?

[Rokkin]

What control model?

SP7 comes to mind.

[statescrew]

Hmmm...can you do a zero return to get machine lined back up? Such as zpexe

[MazakMack]

T-Plus control

What control model?

SP7 comes to mind.

[garylfix]

is c axis in the servo page of the control look in the servo monitor page if so is it defined as a number if so take that number and go to the parameters you may need to be in priviy mode play with the n11 parameter this should be the grid shift at home play with this till you get the clearance you need for your tooling or your probes etc....if the axis is not defined as a anumber on this page just find the grid shift parameter for the 1 home position for c axis and move this around,however making sure that your 15 years of programs call for the c axis to be at number 1 home at the time of your problems

[jake_tb]

I had a similar issue years back with my X axis on our T32-3 controller. There was a parameter that adjusted this, if memory serves me correctly it was S11 or 12. There were X, Z & C axis values in the one line. The values were big numbers and were in degrees of the ball screw, not mm of movement. Just write down any values before changing and have a play!
Jake