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We have a Hitachi 3NE with a Fanuc 6T and Fuji spindle control. This lathe has a spindle speed issue that have gradually been getting worse. Like over the last five years. This lathe doesn't get used...

I have a FUJI DSR Compact drive type FSD-15 DN-23 220V 82A made in 1981. It's in a Hitachi Seiki 3NE lathe. So I've had persistant motor alarm problems over the several past years which I have...

Hello-

I'm not sure if I'm in the right forum, but I'm not sure if this fits in any other forum either. So...I've got a 1980's Enshu mill with a Fanuc 3MA control. Nothing really wrong with it,...

OK-

So I got some time to dig into this and here is what I see.

I set up the turret at the "safe" position and G50 it at X0 Z0 so I could make moves without running into anything. Set up a dial...

I've always canceled offsets when bringing up a tool or putting it away. The syntax of the tool calls I use are this:

1) Call up the tool with G40 and T0500 for example.
G0 G40 T0500 (brings up...

I am going to introduce one more oddity to this thread. I changed the order of tool selection in this program and the problem went away for the tools that I had changed. I know what you are...

Hi-

I've been reading all this with some interest. Thanks for all your thoughts. I thought about changing the G50 and just go with positive Z moves just to see what happens. However if the end...

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OK, I've looked at the parameters. I've got fifteen pages and they go up to 407. My manual states that parameters 1000 to 1127 are X pitch error compensation and 2000 to...

>>What about a relative move?
>>Al.

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Well once you have established what is Z 0.0 and then moved to Z -.1 ( with a big offset ) for example, all - or + Z moves work fine....

Unfortunately G43/G44 and G49 aren't available on this machine. Thanks for your thoughts, tho.

Bob-

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1)
It overshoots when the destination is -Z. You can G0 it from it's safe tool position and it'll go right up to Z0.0. Now give it a G0 or G1 to -Z 1.0 and it moves...

Hello-

I've got a Fanuc 6T control on a Hitachi Seiki 3NE-300 lathe. Recently it's developed an odd problem. It will overshoot a negative Z position by about 450 thousands when given a G0 or G1...