Big Mouth Bubbler Tri-Clamp

Problem: BMB Universal lid pops off.

I like Northern Brewer's Big Mouth Bubbler but they got rid of the screw-on lid, and replaced it with a press-on cap that pops off unless the lid and bottle are super dry, and even then it can pop-off. ... and seriously, who dries the lids, most of us pull it straight from the star-san and pop it on.

This design secures the lid with a tri-clamp-ish fitting. All parts print without support, and no hardware is needed, except for an optional piece of string to prevent losing the pin.

Solution:

1. Print the 3 parts
2. Screw-on the adapter ring, wide side up
3. Press-in the sanitized BMB Universal lid
4. Attach the collar over the ring and around the adapter
5. Insert Pin to secure the collar
   The gasket on the BMB lid will now seal properly, so the collar does not need to be super tight, hence securing with nothing but a printed plastic pin.

Print instructions

Category: Kitchen & Dining Summary

Problem: BMB Universal lid pops off.

I like Northern Brewer's Big Mouth Bubbler but they got rid of the screw-on lid, and replaced it with a press-on cap that pops off unless the lid and bottle are super dry, and even then it can pop-off. ... and seriously, who dries the lids, most of us pull it straight from the star-san and pop it on.

This design secures the lid with a tri-clamp-ish fitting. All parts print without support, and no hardware is needed, except for an optional piece of string to prevent losing the pin.

Solution:

1. Print the 3 parts
2. Screw-on the adapter ring, wide side up
3. Press-in the sanitized BMB Universal lid
4. Attach the collar over the ring and around the adapter

5. Insert Pin to secure the collar
   The gasket on the BMB lid will now seal properly, so the collar does not need to be super tight, hence securing with nothing but a printed plastic pin.

   Print Settings

Printer Brand: Prusa

Printer: i3 MK3

Rafts: No

Supports: No

Resolution: .15

Infill: 15%

Filament: Prusament PETG Grey
Notes:

Parts were designed to not require support