Skip to content

5L PET fermenter airlock cap

Advertising
Advertising
?
Creation quality: 5.0/5 (1 vote)
Evaluation of members on the printability, utility, level of detail, etc.

  • 1.2k views
  • 1 like
  • 70 downloads

License
3D design format
Folder details Close
  • cap_v1.stl

Learn more about the formats

3D model size X 54 Γ— Y 52.9 Γ— Z 12.4 mm
Publication date 2023-09-13 at 08:17
?
Published to Thingiverse on: 2020-07-19 at 17:42
Design number 1447169

3D printer file info

3D model description

A bottle cap designed to fit 5L (~55mm) PET water bottles, with a hole (11mm) to accept an airlock.
I have seen other similar designs (particularly DennyNC's) but they are for a smaller mouth bottle and doesn't work after up-scaling to the proper size.
I just took danceyoga's design and added an 11mm hole in the middle. After printing the hole came out slightly undersized for me but it worked for my airlock.
I'm currently testing it with a batch and plan to improve upon the design.

Things to improve:
* The hole needs to be enlarged to better fit some thicker stemmed airlocks
* The material around the hole is thin and flexes when the airlock is inserted, some strengthening may be required(although this might actually be a pro in some cases since this way it has a better seal without a rubber grommet and the material is strong enough to not break)
* I plan on added a different version witch can accommodate for a rubber grommet providing a better seal (not strictly required but a nice option)

Advertising


Issue with this design? Report a problem.

Would you like to support Cults?

You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:

  • ADVERTISING: Disable your banner blocker (AdBlock, …) and click on our banner ads.

  • AFFILIATION: Make your purchases online by clicking on our affiliate links here Amazon.

  • DONATE: If you want, you can make a donation via Ko-Fi πŸ’œ.

  • WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!


Sharing and downloading on Cults3D guarantees that designs remain in makers community hands! And not in the hands of the 3D printing or software giants who own the competing platforms and exploit the designs for their own commercial interests.

Cults3D is an independent, self-financed site that is not accountable to any investor or brand. Almost all of the site's revenues are paid back to the platform's makers. The content published on the site serves only the interests of its authors and not those of 3D printer brands who also wish to control the 3D modeling market.

100% secure payment by credit card, PayPal, Apple Pay, Google Pay, etc.
View all payment options.