Unfortunately, I find myself coming here to ask for help again. My apologies.
Please see below video link with sound of the harmonics that have recently started coming from my y-axis, and seem to be steadily getting worse.
I am very concerned…
Any help or advice or troubleshooting steps would be greatly appreciated.
Thank you!
Update:
I checked all (8) screws holding the servo to the machine, all tight.
I checked all (4) screws on the shaft spring collar, all tight.
I could not check the double-nut circled in Red below, as I don’t have the right tools for that.
I guess the next step is to remove the way cover(s) and try to check the lead screw, and nut, and etc???
It sounds like metal on metal to me. Are you sure the sound is from the motor? I would isolate the sound to the table or motor first. Uncouple the motor and see if it’s making the noise. If it’s the motor side you can probably keep running but if it’s the table side grinding metal it could be the ways or the ball screw or something horrible to fix.
Unfortunately, it is a harmonic sound only happening at specific speeds and motions. It doesn’t happen at slow speeds, so i would not be able to reproduce it with the servo detached. I am planning to take the way cover off and look at it as soon as i finish my current order.
My 1100mx groans at 700mm/min but it’s nothing like yours.
Its the bearing preload and or gib adjustmrnt
Ive had the same problem on both x and y axis
Order the nur wrench kit or figure some other way to adjust the preload… follow Tormach’s procedure for borh and u should be good
I use 12-15 ft lbs of torque and it seems to work
Ed
Do you happen to have a link to that kit?
Or know the specific castle nut sizes?
I googled a little bit and found nothing.
Thank you!
Sure, here ya go
