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Marino
(@marino-2)
Active Member
Found small o-ring

I’ve finished my C1 kit assembly. No problems so far. Just needed to go back a bit twice to install the buddy camera and the advanced filter, but everything went smooth.

however, when I lift the printer to move it to the final place, there was a small o-ring under the printer. I don’t know where it can belong.

Any idea?

Best Answer by Jürgen:

If I remember correctly, there is a small sealing ring on the thread of the M5-4 push fitting which holds the PFTE tube in the Nextruder. That might be the right size? Although it seems unlikely that it would come off during the assembly. In any case, the printer will work fine without it!

Posted : 21/12/2025 12:06 am
hyiger
(@hyiger)
Noble Member
RE: Found small o-ring

 

Posted by: @marino-2

I’ve finished my C1 kit assembly. No problems so far. Just needed to go back a bit twice to install the buddy camera and the advanced filter, but everything went smooth.

however, when I lift the printer to move it to the final place, there was a small o-ring under the printer. I don’t know where it can belong.

Any idea?

It could either be a spare part or a grommet that fell out one of the holes where cables pass through. Otherwise it won't cause a problem with the functioning of the printer. 

Posted : 21/12/2025 12:14 am
Marino
(@marino-2)
Active Member
Topic starter answered:
RE: Found small o-ring

It's too small to be a grommet (0.5 cm) and it's not a part I saw during assembly or listed in the guide. I'm starting to think it's an o-ring that fell off something else or was already on the table. The printer is working perfectly, so... *shrug*

Posted : 22/12/2025 7:41 pm
Jürgen
(@jurgen-7)
Noble Member
RE: Found small o-ring

If I remember correctly, there is a small sealing ring on the thread of the M5-4 push fitting which holds the PFTE tube in the Nextruder. That might be the right size? Although it seems unlikely that it would come off during the assembly. In any case, the printer will work fine without it!

Posted : 22/12/2025 7:59 pm
3 people liked
Marino
(@marino-2)
Active Member
Topic starter answered:
RE:

Absolutely incredible!!. You've hit the nail on the head!. I took apart the M5-4 and it was missing that o-ring. It must have fallen off while mounting and I didn't notice. Even though it doesn't affect anything and the printer works perfectly, I knew it would keep reminding me that the printer wasn't complete, so I've already put it back in place.

Thank you so much!

Posted : 22/12/2025 9:25 pm
3 people liked
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