• You're one step from joining CNC Machining Forum – G-Code, Tooling, Automation & Pro Techniques.
    Create a free account to post, follow threads, and never miss an update.  Sign up free →

Tool offset haas

HevDovey

New member
Joined
Apr 4, 2025
Messages
2
On the old VF2 (1995) I'd set all tool lengths to a 100mm gauge block on the table and measured the fixture or workpiece offset (G54 Z) from that negative if the part was lower and positive if higher. It was just simple and consistent since all tools referenced the same 100mm gauge. Though on the new VF2 (2018), using tool offset measure behaves different, it factors in the current G54 Z value when setting the tool length. for example, if G54 Z is -30 and machine Z is -360, the measured tool offset becomes -330, this means the control subtracts G54 Z from the machine position when applying the offset. Any thoughts? Am I doing things right?
 
On the old VF2 (1995) I'd set all tool lengths to a 100mm gauge block on the table and measured the fixture or workpiece offset (G54 Z) from that negative if the part was lower and positive if higher. It was just simple and consistent since all tools referenced the same 100mm gauge. Though on the new VF2 (2018), using tool offset measure behaves different, it factors in the current G54 Z value when setting the tool length. for example, if G54 Z is -30 and machine Z is -360, the measured tool offset becomes -330, this means the control subtracts G54 Z from the machine position when applying the offset. Any thoughts? Am I doing things right?
you're kinda on the right track, the newer VF2 adjusts for the G54 Z offset when setting tool lengths, so it's factoring that in automatically. It's a more flexible system, ensuring your tool offsets are consistent with whatever coordinate system you're using. As long as you're mindful of your G54 settings, it should work fine
 
hi @HevDovey oyur previous method was fine for your old machine, but it's not an efficient way of working with modern CNC controls.
The new machine provides a more standard and reliable process that separates the tool length offset (the individual tool's length) from the work offset (the part's location)
 
That offset behavior definitely trips people up when jumping from the older controls to the newer ones. The system logic changed so it applies the active G54 Z automatically during tool measure. I’m wondering if anyone’s adjusted their workflow or macro setup to keep the “common reference block” method consistent across machines.
 
Back
Top