Y Motor/servo motors and maintinance

[Forty One]

I've noticed on my firends JV33 that his machine runs alot quiter than mine.
I've lubed the linear rail, done a bit of cleaning and what not but it still screams like a 5 yr old with a new bike on xmas.

Majority of the sound now comes from the Y Motor. Has anyone lubed up their motor here and can give an insight? Location of the grease/oil holes or any how-to advice?

 

[Neil]

I found on my JV33 that the belt going around the cogs was responsible for a lot of the whining noise.
I cleaned the belt - got a lot of surface gunk off. Then sprayed lithium grease on the cogs and belt teeth.
Much better

 

[MikePro]

i know that you can adjust motor current

 

[Neil]

i know that you can adjust motor current

Warning if you try that - if you adjust it too low it will cause Y overcurrent error every time it tries to move. Then you can't restart the machine because it will error on startup every time.
Actually - that happened on my CJV30, so it may not error on startup on a JV33 as it doesn't need to scan across first thing like the CJV does.
Still, I had to reload backup parameters file to overwrite it and fix it.

 

[FrankW]

Motors wear out. The noise from the motor is increasing very slowly, so that people who works on their machine every day mostly don´t notice it. It starts with noise, and ends with motor errors (seldom with a damaged servo board).

I´m a technician, If I do service on a customers printer or cutter and hear strange noises, I regularly suggest to replace the motor.

 

[Smoke_Jaguar]

Brushes wear out, and carriage motors regularly encounter some crazy high forces. Sometimes just swapping the belt and doing a proper cleaning and retensioning of the system will also help. If you feel daring, servicing the motor and changing bearings also go a long way. If you can, spring for good bearings like SKF, NTN, FAG, etc.

 

[Forty One]

Damn.
A little bit of cleaning the belt and some lithium grease makes a huge change.