Upgraded to the R3 parts, now crazy squeaking?  

Re: Upgraded to the R3 parts, now crazy squeaking?

Had the same squeaking.
After a couple hours of printing it is almost gone.

Re: Upgraded to the R3 parts, now crazy squeaking?

Okay, thanks - I'll ignore it for a bit and see what happens.

Cheers

Re: Upgraded to the R3 parts, now crazy squeaking?

Squeaking is coming from the fact the blower only has one attachment point. At least on mine that's where it's coming from.

Re: Upgraded to the R3 parts, now crazy squeaking?

Same Problem, I stopped and held the fan with my finger and it wasn't the problem. It appears related to the extruder feed. Sound changes with forward extrusion and retraction. After a few prints it has faded away.

Re: Upgraded to the R3 parts, now crazy squeaking?

Same here, I've spent the afternoon doing a few more prints and it doesn't make the sound any longer.

Thanks for the pointer, saved me ages of trying to debug it 😀

Re: Upgraded to the R3 parts, now crazy squeaking?

I too have it, though it's dissipated, and I think it might be related to the filament path. I noticed, after my extruder was fully assembled, that the filament was a tight fit between the sensor and bondtech gears. At first I considered tearing everything down and reprinting but then thought screw it, friction will open the path a bit in time.

Re: Upgraded to the R3 parts, now crazy squeaking?

I don't know if this is related but when I printed the main extruder assembly I noticed that the filament feed path just below the filament run out sensor didn't print completely right. When I attempted to run standard filament through the extruder assembly there was a lot of resistance where it was gripping the filament. What I ended up doing to clean it up is I had a sample left over of that proto-pasta stardust filament it basically feels really rough. I fed that through the pathway a few times and that ended up cleaning out what ever was clogging the pathway. I am not sure if I spotted this before assembling the new extruder assembly preventing me from running into this issue but that might be the likely cause.

Re: Upgraded to the R3 parts, now crazy squeaking?

My MK2S and MK3 has this sound when printing PETG. It comes from somewhere in the filament path.
Even after printing more than 1000m PETG is is still squeaking but but with pauses.

Upgrading the MK2S to MK2.5 with R3 I cleaned out the top part filament hole with a 2mm drill to make a sure there was free passage. Until now, no squeaking... 😀 seems that the problem is solved.

Re: Upgraded to the R3 parts, now crazy squeaking?

My MK2S and MK3 has this sound when printing PETG. It comes from somewhere in the filament path.
Even after printing more than 1000m PETG is is still squeaking but but with pauses.

Upgrading the MK2S to MK2.5 with R3 I cleaned out the top part filament hole with a 2mm drill to make a sure there was free passage. Until now, no squeaking... 😀 seems that the problem is solved.

One of those nuggets to store for future prints. My extruder was fully assembled and I was loading filament for the test when I noticed how tight it was. My only option was a tear down and I was just like F'it, I'll see what happens and tear it down if it doesn't work. I'm not 100% but it does seem a little less snug when loading filament. Part of me wonders if the tight path is by design or just an oversight...

Re: Upgraded to the R3 parts, now crazy squeaking?

One of those nuggets to store for future prints. My extruder was fully assembled and I was loading filament for the test when I noticed how tight it was. My only option was a tear down and I was just like F'it, I'll see what happens and tear it down if it doesn't work. I'm not 100% but it does seem a little less snug when loading filament. Part of me wonders if the tight path is by design or just an oversight...

I don't think it is by design, properly more a result of print orientation and the small dimensions.

In the MK3 kit, there are parts with M3 screw holes that needs reaming for smooth assembly too.

Re: Upgraded to the R3 parts, now crazy squeaking?

Earlier on I learned to have a 3mm tap and this time around tapped all of the holes that didn't have a nut on the back and that made a world of difference. Maybe I need to add a reamer to the war chest.

Re: Upgraded to the R3 parts, now crazy squeaking?

I had the same issue, for me it was the filament path hole printed oval instead of round, resulting in deformed PTFE tube (poor overhang performance due to current heat wave in Western Europe, I think it was around 40C inside when I was printing the upgraded parts).
It was solved by drilling out the hole with 4mm drill and replacing the ptfe tube.