Hi,
We are nearly at the end phase 1 for getting a '93 leadwell OP with fanuc OMF. "We" are a zero-cost, non-profit teaching high school student robotics, mechanical design and cnc. We no experience setting up or operating a leadwell (or any other cnc machine).
Currently, our tool carousel is bumping the spindle nose, not a good thing. BTW, our robotics teams started Oct 25 and we still don't have any working cnc machine.
A bit a background, we got this machine with no parameters and the parameters were recreated from reading the fanuc manuals and with invaluable help from forum members, TriStar and CAMPAT.
From help from CAMPAT, TriStar and fanuc, I was told to use either parameters 510 (z-axis grid shift) or 737 (REF2Z- distance from reference point to second reference point) and setting using [G91, G28, Z0] or [G91, G30, Z0] (respectively) to set the z-axis positions during change operations. The G codes needs power-off to take effect.
On "our" leadwell, using parameter 510 (grid shift = 1000/1mm) has no effect on z-axis position. Don't know why, maybe another wrong parameter ?
Parameter 737 does moves the z-axis, however it turns off ZRN and tool change fails due to not on ZRN. When ZRN reaches 0 after power-off/on, it in the same position (measured with a dial indicator).
Neither using 510 or 737 moves the z-axis during tool change operations, which I expect to happen.
What am I doing/thinking wrong ?
Thanks
gary