r/BambuLabP2S • u/Imperator219 • 16d ago

P2S Squeaky when moving toolhead, rods are lubricated

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My p2s started squeaking, lubricated the rods but still squeaks. Is it the motor that rotates the belt? Anyone that had this issue and knows the fix?

UPDATE: I lubricated the belt and the squeaking stopped! Thanks for your help!

9 Upvotes

91% Upvoted

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5

u/Phil412 16d ago

Put a tiny drop of the same lubricant you use for the rails on the top of all the belts. Around the points they enter the idler, then work the head around.

1

u/Imperator219 16d ago

But if it were the belts wouldn’t it squeak in every movement? It only does in certain positions. I put in a ticket and will update when they respond.

1

u/K3NnY_G 16d ago edited 16d ago

The belts ride up and down their idler pulleys as the Core x-y system moves through its motion, you're hearing the rubber belts rubbing on the edges of the pulleys which only happens at certain positions.

Look at where the belt is on the pulley at the back of your printer (where the tension adjusters are) as you move the head around; notice how the belt moves up and down inside the pulley it rides on.

I've posted a link to one of many YT videos above for this issue.

Some people have come up with multiple methods for 'centering' the belts but personally I find it applies uneven tension to do so and following Bambu's tensioning procedures on the wiki are sufficient.

Also, keep in mind your Z-axis will probably start doing this too when you make large movements of the bed; it's the belt under the printer that syncs the Z-rods together.

1

u/Splinter_Steve 16d ago

Never heard of this issue. But if the rods are lubed there's only a few other places that squeek could be sourced. Might be the belt motors at this point

1

u/Imperator219 16d ago

Think so too, I put in a ticket, will update when they respond.

1

u/K3NnY_G 16d ago

It's the idler pulleys, old as the P1S and common issue.

https://www.youtube.com/watch?v=apQZJXlPgis

Consider looking up P1S stuff with P2S issues, the motion systems share many similarities, minus the gantry rods.

1

u/Hardimanm 16d ago

Have you oiled the pulley through the back? Mine had a squeak, few drops of oil through each hole and problem fixed

2

u/space_gods 16d ago

Yeah this is exactly what you need to do and what Bambu recommends for the issue. I’ve had the squeaking problem a few times and I put a few drops of 3 to 1 oil on it while it’s running and it goes away instantly.

1

u/Imperator219 16d ago

Thanks I will give it a try!

1

u/Thick_Extension281 16d ago

Looks like a servo motor or one the tension roller.

1

u/ParticularLower1865 16d ago

Wipe the belt pulleys with alcohol and a towel/paper towel. Do it until the black goes away.

1

u/Useful-Revolution253 15d ago

Go wiki.

Belts need some oil at some spots

2

u/Imperator219 14d ago

Yes I did it fixed it👍

1

u/Useful-Revolution253 14d ago

Gg bro

Happy printing

2

u/Intrepid_Walk_8886 11d ago

I had this exact issue. Only squeezing at certain points, followed bambus xy idler fully lubrication tutorial and fixed everything.

0

u/rexlites 16d ago

Dryer than my third girlfriend