how to adjust Backlash.

[cnccustom]

I have a Syil Super x3 that is about 4 months old but is used almost everyday and now I need to Adjust my backlash...

How is this done...I have .038 in X and .027 in Y...Z I have .032

I have looked the Ballscrews over but not sure how to Adjust them...

I tried to set backlash in mach 3 but it gouges the corners, would rather get mechanical backlash within a thou or 2


Thanks

[SyilAmerica]

Wooo. That's insane amounts of backlash. The ballnuts would explode with that much.

The ballnuts are pre-loaded so there is not adjustment. The only place to adjust backlash out is in the coupler set screws and pre-loading the angular contact bearings in the motor block interface.

First place I'd look is the coupler set screws. I'll bet they are loose.

[cnccustom]

I checked the Couplers and they were loose but I still have .016 in X .012 in Y
.015 in Z......


What is pre-loading the angular contact bearings in the motor block interface.

don't quite understand this.....any info on this appreciated

Thanks

[cnccustom]

Thanks we figured it out today........you must have been refering to the brass nut in front of the coupler.....they were loose too

Got it back in within .0005 on Y and .001 on X .001 on Z...

Plenty good for what we are doing

[SyilAmerica]

That's the one. At about .01" the ballnuts would basically eat themselves up. A little locktite blue is a good thing on machines that are used in a production enviroment. NO RED. That will keep things from loosening up after working it hard.