Creaking noise coming from extruder assembly - Others (Archive)

RE: Creaking noise coming from extruder assembly

Brian Flores — Tue, 21 Jul 2020 00:19:03 +0000

(UPDATE: 07-20-2020)

I printed a new extruder-idler with Black Prusament PETG, and the squeaky noise was not there, while printing it. Makes me wonder if its just certain filaments that is making the squeaking noise.

Some others are saying noise will go away after 50 hours or printing. I am 60 hours in. Squeaking noise still there.

Some other posts with lots of validated responses are saying, "It's caused by filament rubbing against the printed extruder parts above the bondtech gears." and reference printing new parts: https://www.myminifactory.com/object/3d-print-86329. Read the comment section in that link. I will try this and report my results.

If this is the fix.. I was way off base (focused on the bottom, instead of the top). Makes sense actually as there was no squeaking before with the MK3. i.e new MK3S self printed parts being the culprit.

squeak3.jpg

RE: Creaking noise coming from extruder assembly

Brian Flores — Sat, 18 Jul 2020 03:44:21 +0000

Posted by: @brian-f9
Posted by: @brian-f9
Posted by: @brian-f9
Posted by: @alistair-m2
Hi Makers
This squeaking sound has been driving me crazy since I took my MK3 and transformed it into a mighty MK3s....
I read this post yesterday, while I was still running a long print, anyway, took the idler door off today when I got the first chance I could.
With the idler door off, and that checked. I could see some small plastic residue under the gears, the gears had been rubbing on the top of the PTFE tube and had been making these psycho noises. Anyway a stanly knife blade was used in situ to trim the PTFE tube flush with the black plastic angled support holding it.
Anyway, after assembly, WOW, I am so back to the good old stealth days of mk3'ism.... Sat here close to midnight with the heathy hum of my now mk3S and the silence of the family sleeping somewhere in the backfground......
Long live stealth mode.
Alistair.
Thank you @alistar-m2! This was the fix for mine as well. PTFE tube was rubbing on the metal gear. Cut the PTFE tube flush with an X-acto blade, and no more squeaking.
fix.jpg
Well darn it. Was fine for about an hour. Went to bed. Woke up. Started another print, and the squeak is back. Will wait for this print to completed, and will check it again. The thrill of the hunt!
Attempt #2. This time I cut the side facing me. Assuming its rubbing against the gear we assemble. I also put lithium grease on the bearings and shaft this time. Both sides of the shaft were evenly fitted BTW, or none of them ever fell off, as in some other problem/solutions. Hopefully cutting both sides of the PTFE tube and greasing the gear/shaft will quite her down. 30 minutes in and no noise so far. Will see.
Close-Up.jpg

3 hours later squeaky noise returned. It appears the PTFE tube rubbing against the gears, is not what’s making the noise for me...or going down the wrong path. I’m going to print a new PETG extruder-idler from Martin’s post next. Sorry for all the previous false positive posts. Wish I could delete them.

RE: Creaking noise coming from extruder assembly

Brian Flores — Sat, 18 Jul 2020 01:36:45 +0000

Posted by: @brian-f9
Posted by: @brian-f9
Posted by: @alistair-m2
Hi Makers
This squeaking sound has been driving me crazy since I took my MK3 and transformed it into a mighty MK3s....
I read this post yesterday, while I was still running a long print, anyway, took the idler door off today when I got the first chance I could.
With the idler door off, and that checked. I could see some small plastic residue under the gears, the gears had been rubbing on the top of the PTFE tube and had been making these psycho noises. Anyway a stanly knife blade was used in situ to trim the PTFE tube flush with the black plastic angled support holding it.
Anyway, after assembly, WOW, I am so back to the good old stealth days of mk3'ism.... Sat here close to midnight with the heathy hum of my now mk3S and the silence of the family sleeping somewhere in the backfground......
Long live stealth mode.
Alistair.
Thank you @alistar-m2! This was the fix for mine as well. PTFE tube was rubbing on the metal gear. Cut the PTFE tube flush with an X-acto blade, and no more squeaking.
fix.jpg
Well darn it. Was fine for about an hour. Went to bed. Woke up. Started another print, and the squeak is back. Will wait for this print to completed, and will check it again. The thrill of the hunt!

Attempt #2. This time I cut the side facing me. Assuming its rubbing against the gear we assemble. I also put lithium grease on the bearings and shaft this time. Both sides of the shaft were evenly fitted BTW, or none of them ever fell off, as in some other problem/solutions. Hopefully cutting both sides of the PTFE tube and greasing the gear/shaft will quite her down. 30 minutes in and no noise so far. Will see.

Close-Up.jpg

RE: Creaking noise coming from extruder assembly

Brian Flores — Fri, 17 Jul 2020 12:19:30 +0000

Posted by: @brian-f9
Posted by: @alistair-m2
Hi Makers
This squeaking sound has been driving me crazy since I took my MK3 and transformed it into a mighty MK3s....
I read this post yesterday, while I was still running a long print, anyway, took the idler door off today when I got the first chance I could.
With the idler door off, and that checked. I could see some small plastic residue under the gears, the gears had been rubbing on the top of the PTFE tube and had been making these psycho noises. Anyway a stanly knife blade was used in situ to trim the PTFE tube flush with the black plastic angled support holding it.
Anyway, after assembly, WOW, I am so back to the good old stealth days of mk3'ism.... Sat here close to midnight with the heathy hum of my now mk3S and the silence of the family sleeping somewhere in the backfground......
Long live stealth mode.
Alistair.
Thank you @alistar-m2! This was the fix for mine as well. PTFE tube was rubbing on the metal gear. Cut the PTFE tube flush with an X-acto blade, and no more squeaking.
fix.jpg

Well darn it. Was fine for about an hour. Went to bed. Woke up. Started another print, and the squeak is back. Will wait for this print to completed, and will check it again. The thrill of the hunt!

RE: Creaking noise coming from extruder assembly

Brian Flores — Fri, 17 Jul 2020 04:52:25 +0000

Posted by: @alistair-m2
Hi Makers
This squeaking sound has been driving me crazy since I took my MK3 and transformed it into a mighty MK3s....
I read this post yesterday, while I was still running a long print, anyway, took the idler door off today when I got the first chance I could.
With the idler door off, and that checked. I could see some small plastic residue under the gears, the gears had been rubbing on the top of the PTFE tube and had been making these psycho noises. Anyway a stanly knife blade was used in situ to trim the PTFE tube flush with the black plastic angled support holding it.
Anyway, after assembly, WOW, I am so back to the good old stealth days of mk3'ism.... Sat here close to midnight with the heathy hum of my now mk3S and the silence of the family sleeping somewhere in the backfground......
Long live stealth mode.
Alistair.

Thank you @alistar-m2! This was the fix for mine as well. PTFE tube was rubbing on the metal gear. Cut the PTFE tube flush with an X-acto blade, and no more squeaking.

fix.jpg

RE: Creaking noise coming from extruder assembly

jurassic73 — Sat, 04 May 2019 16:51:52 +0000

I used a 2mm bit but it dislodged debris in there from rubbing and it was quiet again. Found this replacement part set. Apparently there's some misalignment of the filament?

https://www.myminifactory.com/object/3d-print-butterworth-design-prusa-mk3-mk3s-r4-extruder-mod-filament-path-alignment-and-indirect-mk3-filament-sensor-86329

Gonna give this a go.

RE: Creaking noise coming from extruder assembly

jurassic73 — Fri, 26 Apr 2019 14:44:00 +0000

I believe this will be my fix as well after verifying my idler is good (pin is very solid in piece), PTFE tube is not rubbing. Thanks for posting this.

Re: Creaking noise coming from extruder assembly

Alistair — Tue, 12 Mar 2019 00:11:55 +0000

Hi Makers

This squeaking sound has been driving me crazy since I took my MK3 and transformed it into a mighty MK3s....

I read this post yesterday, while I was still running a long print, anyway, took the idler door off today when I got the first chance I could.

With the idler door off, and that checked. I could see some small plastic residue under the gears, the gears had been rubbing on the top of the PTFE tube and had been making these psycho noises. Anyway a stanly knife blade was used in situ to trim the PTFE tube flush with the black plastic angled support holding it.

Anyway, after assembly, WOW, I am so back to the good old stealth days of mk3'ism.... Sat here close to midnight with the heathy hum of my now mk3S and the silence of the family sleeping somewhere in the backfground......

Long live stealth mode.

Alistair.

Re: Creaking noise coming from extruder assembly

TrevJonez — Wed, 26 Sep 2018 05:42:22 +0000

I had a similar issue as daniel did and drilled out above the gears by hand. the catching and grinding had caused some real bad under extrusion and build up of petg flakes. decided to tear out my hot end and check the teflon tube in the heat sink and it was floating up 1-2mm higher than it should have been. So I took a copper washer and trimmed a slot in it to use as a retaining clip for the bowden retaining clip.

Earlier in the day I took the stock bondtech idler mount and shaved a bit off to add nylon washers and it seemed to help initially but didn't last but a few cm worth of extrusion.

So all that said, if you found your way to this post through a search while being annoyed by the sound of plastic chirps. check the filament path above the extruder and make sure that your hotend ptfe tube has not backed out.

Re: Creaking noise coming from extruder assembly

Dan — Sat, 21 Jul 2018 13:46:27 +0000

I ran into a similar sounding issue after finishing my Mk2.5 upgrade, plastic creaking come from the extruder.

My issue turned out to be the top hole where the filament enters the extruder wasn't perfectly round and the filament was snagging, which was causing the filament to rub on the extruder body causing the plastic creaking noise. This must of been a slight defect with the print. I confirmed this by pushing a short bit of filament through by hand and comparing the resistance which my MK2S part. There shouldn't be any resistance but there was.

To fix I first placed a piece of paper inside the extruder to protect the hotend and ran a 1.5mm drill through the top hole by hand, followed by a 2.0mm drill (I don't have a 1.75mm drill). Only a few pieces of tiny plastic dropped down onto the paper, but this was enough to remove all resistance.
The creaking noise stopped immediately after doing this.