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38-400 cap for storage and airlock

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

  • 3.3k views
  • 4 likes
  • 90 downloads

License
3D design format
STL Folder details Close
  • 38_400 v4.stl
  • 38_400_v4_hole.stl
  • 38_400_v7.stl
  • 38_400_v7_hole.stl
  • hole_liner.stl
  • liner.stl

Learn more about the formats

Last update 2021-05-06 at 01:21
Publication date 2021-04-22 at 00:08
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Published to Thingiverse on: 2021-04-22 at 00:05
Design number 408120

3D printer file info

3D model description

Update 07 May 21
Tweaked liners again to a thickness of .6 mm. Tweaked caps with different ridges and slightly thicker outer wall.

Update 05-May-21

Renamed files. Tweaked liners to be .5 mm smaller for a better fit.

38-400 caps for home brewing. Have you every grabbed some cider and kept the jug to ferment in? Well, so have I and now when I run out of bungs, I can use these caps to either seal or ferment in...when I lose the metal cap :)

Designed to have room for a lid seal - TPU .stl included for a plain cap and for one with a .25 inch hole which is perfect for a grommet.

I verified that the cap with TPU seal does seem to be air-tight and allows airlock to bubble.

Will also accept bone-fide 38 mm lid seals

3D printing settings

At least 0.2 layer height recommended

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