[Will_0000]

Hi

After a bit of help and advice with regards to a Mazak QT20N with a T2 controller.

I was setting up and running a test program as the machine is new to us, measured all the tools on the tool eye set Z-0 and ran the program however as the tool approches in X it stops way short and starts cutting, the controller will say X 50 but in fact the tool is at X 90.0.

The other problem I am having is setting the offset for the drill holders I can't find a refrence for the defined X offset to be entered.

Is there a parameter setting for the tool eye?

We have just changed the machine from imperial to metric and adjusted all the B parameters to suit.

Regards

Will

[txcncman]

If you are attempting to set the drill's X offset by touching the side of the drill to the tool eye, you will be off center line by the diameter of the drill. The X offset should be when the drill (drill holder) is on center line. Most machinists keep this number handy and just type it in every time a center cutting tool such as a drill, ream, or tap is used.

[Will_0000]

Hi

No not touching on the side, like our Miyano I thought there should be a set figure to type in that sets the center of the drill to the center of the spindle.

The tool eye problem is with a standard od turning tool or boreing bar, after measuring with the tool eye it doesn't set the offsets correctly.

Regards

Will

[txcncman]

Then you probably need someone that can walk you through the calibration procedure.

[z369]

Have you checked your Tool Data/Data2 page? That has gotten me more than a few times. I don't know if you're using software or not, but providing the part is simple enough I suggest writting the program at the machine.
My experience is most Mazaks never require a sensor calibration (ever), so the problem is either in the program or aforementioned settings.