TLDR: Spray the base of all pulleys (pulleys inside and outside the enclosure) with electrical contact cleaner or pressurized air to remove built up debris that accumulates between the bottom of the pulley and the tensioner assembly/frame.
Backstory:
My X1C started squeaking from the rear RH tensioner pulley.
I first tried loosening the tensioner screws and retightening them and then running a new calibration… no change.
Then I tried lubricating the pulley w/ SuperLube… still no change.
I was all ready to break out my tools and disconnect the XY belt and deep clean/inspect the tensioner assembly and pulley, but I decided I would try spraying the base of the idler pulley with some electrical contact cleaner.
POOF! No more squeak!
Here is my theory:
There was a lot of belt debris building up around the tensioner, and I think some of these rubber debris got stuck under the pulley. So all it took was some contact cleaner to dislodge the particles.
Hopefully some of those who have this issue will try this simple fix before resorting to attacking the printer with tools. I have linked some previous posts that were fighting the same issue.
I went through the exact same thing just now. I lubricated twice, and there was still squeaking. So decided to take an air canister and blow out the tensioner pulley, and now no more squeaking!
Oh dear Lord i had the same issue now…squeeking in the front of the build plate when he prints circle things its terrible…i am going to try that tomorrow hope it will be fixed
Hab das problem gelöst habe die riehmen neu gespannt und die Lager eingeölt + die riehmen etwas weiter mittig am Motor verschoben da die am oberen Anschlag an der Rolle/Ritzel liefen, vermute auch das war einer der Gründe…seither läuft er auch total ruhig wieder, anfangs etwas Tricky das Geräusch genau zu finden aber kann jedem nur empfehlen riehmen mal neu spannen und Lager am Motor unterhalb vom riehmen ölen aber mit ptfe Öl und nicht WD40 o.ä
Can confirm that using some Compressed air seemed to do the tricky amazingly for me. I had re-tightened the pulleys a few time but the sound was still there faintly. I assume there was a small bit of filament or even filament dust rubbing inside so the air cleaned it out
I just had this problem with our new printer at work. I hit the pulleys with a few drips of diluted isopropyl and it went away instantly, mid-print. Not sure how long it will last, but the problem appears to be the belt edge riding against the pulley flange. Any lubrication, cleaner, or otherwise is just a temporary fix. In order to totally solve this issue, the belt will have to be aligned properly so it doesn’t ride against the pulley flange.
I got the issue and tried blowing air in the pulley, oiling it, blowing contact cleaner, loosing it and tightening it… nothing worked. Tried multiple times for about a month and a half while going crazy with the noise.
Then i tried blowing contact cleaner in one of the pulley in the case on the top right at the end of the carbon rods… one of these two was the source of the problem because it stopped right away after the contact cleaner.
So if you get the same issue and nothing works, try other pulleys in the printer. The squeaking is not necessarily coming from the idler pulleys.
I hope it helps someone else who faced the same frustration.
Could you please show us a snapshot of the spot you hit with the cleaner? I too have a squeak on the right and it’s been there for months. The axes are clean as a whistle and this horrid sound just won’t go away…
Brilliant, thank you!