I tried to find this in forum history but no joy and the books I have don't say ... probably a dumb question ...
My question is this: what is the convention, if there is one, for setting the Z offset for a single point threading tool be it indexable or solid? Is the Z offset set to the end of the tool or to the actual threading point. If it's set to the point, how is that accomplished?
I've been successfully threading using the tool end to set the Z offset but depending on the size of the tool, especially the solid type, I have to compensate in the program the Z end point for the length of thread by at least 1/2 pitch. In other words if I want a .500 length of thread from zero I have to command the tool to go to -.500 plus some (that would be negative "plus") to get the threading point to .500
I have no problem dealing with the "plus some" but what is the practice out there with the offsets?
I know I still need to know the full length of the tool so I don't run into anything.
Hope my question is clear - no biggee, just curious.
(Fanuc 0i TB gang tool lathe)
Cheers,
Rich
My question is this: what is the convention, if there is one, for setting the Z offset for a single point threading tool be it indexable or solid? Is the Z offset set to the end of the tool or to the actual threading point. If it's set to the point, how is that accomplished?
I've been successfully threading using the tool end to set the Z offset but depending on the size of the tool, especially the solid type, I have to compensate in the program the Z end point for the length of thread by at least 1/2 pitch. In other words if I want a .500 length of thread from zero I have to command the tool to go to -.500 plus some (that would be negative "plus") to get the threading point to .500
I have no problem dealing with the "plus some" but what is the practice out there with the offsets?
I know I still need to know the full length of the tool so I don't run into anything.
Hope my question is clear - no biggee, just curious.
(Fanuc 0i TB gang tool lathe)
Cheers,
Rich