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CMM won't home

PowerJunkie
Not about beer or guns, sorry.
We moved our CMM up the road. Now it won't home. We can jog it in Z, no problem entire range. Y, just about an inch before erroring out says position error Y axis. Nothing at all in X.
Cleaned scales. Moved by hand away from home, and all over.
Air is plentiful, but new/different location. Machine needs 90psi, we tried at 90 and up to 115. Back to 90 now. Speaking of new air we also added a receiver tank. We are currently looking at bypassing that, but want to get a start on other suggestions from you guys maybe.
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  • S O L V E D ! ! !

    no voltage to the motor @ those wires. I isolated the servos in the control box. X and Z each had one green indicator LED but Y nothing. Didn't make sense to me since I'm able to jog Y axis, not X. I called Nikon, they suggested that perhaps we blew a fuse @ that servo. Lucky for me there are 2 empty servo slots each with unused fuses in them. Pull the servo cards out (they look like PC gaming cards) to gain access to the well hidden Y servo fuse slot and replace. Nothing before told me to go fishing around there so I didn't immediately notice that the servo card had become unseated. You know that feeling you get when you instantly realize you just figured something out? I seated the card, fired it up, machine is perfect again!!
    I don't feel bad for not immediately getting this: 1) It's not my job, 2) our local tech in to re-certify the machine after the move didn't catch it either, and 3) I still saved our company like a Million dollars over having a Nikon tech come out to service it. BTW, Nikon service guy was extremely helpful over the phone....for free... even after having never used them for any kind of service at all since buying the machine some 6 or 7 years ago.
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  • S O L V E D ! ! !

    no voltage to the motor @ those wires. I isolated the servos in the control box. X and Z each had one green indicator LED but Y nothing. Didn't make sense to me since I'm able to jog Y axis, not X. I called Nikon, they suggested that perhaps we blew a fuse @ that servo. Lucky for me there are 2 empty servo slots each with unused fuses in them. Pull the servo cards out (they look like PC gaming cards) to gain access to the well hidden Y servo fuse slot and replace. Nothing before told me to go fishing around there so I didn't immediately notice that the servo card had become unseated. You know that feeling you get when you instantly realize you just figured something out? I seated the card, fired it up, machine is perfect again!!
    I don't feel bad for not immediately getting this: 1) It's not my job, 2) our local tech in to re-certify the machine after the move didn't catch it either, and 3) I still saved our company like a Million dollars over having a Nikon tech come out to service it. BTW, Nikon service guy was extremely helpful over the phone....for free... even after having never used them for any kind of service at all since buying the machine some 6 or 7 years ago.
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