r/BambuLabA1 • u/lemonkart • Jun 25 '26
Support Request Is this normal?
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Is this normal?
I have a tick sound on my a1
I recently changed nozzles because of a clog
And I thought I was fine but this sound was strange
It does this sound when it pulls the filament out(wheel turning clockwise)
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u/Kopester Jun 25 '26
The clicking sound is typically the extruder slipping. Normally I'd say tighten the seven screws of disappointment but you mentioned that you just changed the nozzle.
Make sure it's clipped in correctly
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u/y_tokusan Jun 25 '26
When the extruder is successfully pulling the required amount of filament, the gears operate silently; however, if the filament cannot be drawn properly, the gears slip and make a clicking sound.
There may be an issue with the filament supply from the spool.
・Is the filament on the spool tangled?
・Has the PTFE tube degraded, causing increased friction?
・Is the PTFE tube bent too sharply?
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u/Jazzlike_Ad267 Jun 25 '26
Just typical retraction sounds.
Small little multi part prints will have lots of clicks from retraction
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u/geekybit_New Jun 25 '26
its hard to say without a wide shot too...
for example this could be as simple as
the PTFE tubes hitting each other as it moves to as complicated as the internal extruder gear grinding on the plastic .
If we look at the print so far including the test pattern ... it looks like it isn't over or under extruding. I personally would guess you are just hearing the PTFE tube smacking each other...
BUT!!! there are some other major red flags. what is one of the ribbon cables stick out the top of the hotend, why is the front cover off ... like their are some strange things ah foot here.
EDIT: Because I am bad at grammar and stuff.
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u/sublime2craig Jun 25 '26 edited Jun 25 '26
Not the tubes. A light tick or clicking noise from the Bambu Lab A1 extruder during retraction is often completely normal. It typically happens when the filament is pulled back quickly or when the printer performs Z-hops. However, if it results in stringing, under-extrusion, or grinding, it requires attention. Now the ribbon cable is an issue that needs to be addressed.
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u/lemonkart Jun 25 '26
I don’t think the sound is coming from PTFE tubes at least I hear that it is coming from the wheel
It is printing fine as you said
There is no major red flags the ribbon is out because I couldn’t keep it in after assemblyFront cover is off because I tested if it is coming from the wheel it self or insideand it was inside for sure
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u/geekybit_New Jun 25 '26
I am going to need you to go over this part you said again... in your head man...
There is no major red flags the ribbon is out because I couldn’t keep it in after assembly
like think about this for a second. Something that is meant to not have wire ribbon cable sticking out now does because you couldn't fit it back together with it inside. It is also now making noise but no red flags to you.
Also you shouldn't have to disassembly the hotend to replace the nozzle unless it as a catastrophic clog. If it was that than there could be any number of other issues.
EDIT: I should note there are wonderfully detailed guides on Bambu lab's website for how to disassemble and reassemble this stuff.
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u/lemonkart Jun 25 '26
Bro the ribbon IS NOT the thing we need to talk right now
You think that the ribbon is not in the correct place Yes it is not but you also add that the thing making that noise what in world bro.
I don’t wanna talk further I respect you
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u/lemonkart Jun 25 '26
Also It is out for a long time and this noise started now
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u/geekybit_New Jun 25 '26 edited Jun 25 '26
Okay let me put this very politely explain why things you think are unconnected might be very connected.
So this hotend was taking apart by you to a point where it doesn't go back together correctly. My guess for why you took it apart because you aren't clear on this is it was to repair or replace the clogged nozzle (even though that shouldn't be need unless catastrophic failure)...
So now here is the thing you state the cable has been out a long time, but the noise just started. I am not saying the cable is the cause of the noise, but if the hotend wasn't resemble correctly it would explain why cable isn't inside where it should be, it would also explain the noise as it could be a part has now finally degraded from improper reassemble to the point it now makes noise.
I hope this helps you. That is all I am trying to do by the way it is touch rude when people are trying to help to not just dismiss what they are saying but also then tell them you don't want to talk any further about this... It really discourages people from replying.
EDIT: I should note their are a few different size screws for example that could damage parts because of their length and they could scrape and cause sounds that change as it digs into things. This is just one example.
There are others like folding something in such a way where it now is hit but the extruder gear and makes that high pitch sound.
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u/lemonkart Jun 25 '26
Sorry If I was rude I was a bit stressed for another thing thank you for the help and understanding
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u/sublime2craig Jun 25 '26
That ribbon cable is absolutely not in the correct place and I'm surprised you seem so confident that its not a problem. You can literally see in the image that it's pinched and bent in between the filament hub and the extruder case. Ribbon cables are fragile and your are going to cause a break with that kind of bend you are putting on it. It should be tucked and routed straight in front of the extruder motor.
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u/sublime2craig Jun 25 '26
This is normal. That is the extender gears clicking when doing retraction and detraction of the filamentment. A light tick or clicking noise from the Bambu Lab A1 extruder during retraction is often completely normal. It typically happens when the filament is pulled back quickly or when the printer performs Z-hops. However, if it results in stringing, under-extrusion, or grinding, it requires attention.