[adamvs]

There is one more thing to check: if your X-axis gibs are too loose ( this would be *way* too loose for that kind of backlash ), you would show min backlash on X, but it would create backlash on Y as the table wouldn't move until the gib slop was taken up by a reverse in motion.
If you check the preload on the Y axis bearings, be careful about the washer in between the two jam nuts, you will need to re-use it. Tho Tormach has spares if it gets damaged.

Allen keys are metric. Most likely 4mm, 5mm, or 6mm.
Good luck, would be very interested in what you find.

[jake hoback]

Very good idea man! thanks for that. Ill give that a try tomorrow am.

Was waiting for Tormach to call back all day but no dice, guess Ill have to play phone tag with them tomorrow.

There is one more thing to check: if your X-axis gibs are too loose ( this would be *way* too loose for that kind of backlash ), you would show min backlash on X, but it would create backlash on Y as the table wouldn't move until the gib slop was taken up by a reverse in motion.
If you check the preload on the Y axis bearings, be careful about the washer in between the two jam nuts, you will need to re-use it. Tho Tormach has spares if it gets damaged.

Allen keys are metric. Most likely 4mm, 5mm, or 6mm.
Good luck, would be very interested in what you find.