Bottle-to-bottle drain coupler — 3D-printable model preview
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Bottle-to-bottle drain coupler

Drain the last drops into a new bottle

Joins two bottles mouth to mouth: the 21 mm spigot plugs into the new bottle, the old one stands upside down in the cup above, and the last shampoo, sauce or washing-up liquid drains across overnight instead of going in the bin.

Size (Base A)
Ø 21 mm, 16 mm tall
Shape
Round
Walls
2.4 mm
Volume
13.0 cm³
Est. weight (PLA)
16.2 g
Parts to print
1
Made by
Krypto
Built in
17 steps

What’s in it

  • Round, Ø 21 mm, 16 mm tall, with 2.4 mm walls
  • 2 holes in the floor
  • One more base built on (Base B)
  • Base B: round, Ø 42 mm, 30 mm tall (stacked)

How to print it

TPU seals best in the bottle neck.

Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Filament: at most about 16.2 g of PLA printed solid (roughly $0.32 at $20 per kg); normal infill uses less.

To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).

Questions

What size is the bottle-to-bottle drain coupler model?

The bottle-to-bottle drain coupler model measures Ø 21 mm, 16 mm tall. That is Base A; one more base is built on. You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. TPU seals best in the bottle neck. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

How much filament does it use?

At most about 16.2 g of PLA (13.0 cm³ printed solid), roughly $0.32 of filament at $20 per kg. Normal infill uses less.

Can I change it?

Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.

More sustainable living

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Make it fit your space

Change the size, walls, dividers, holes and labels of the bottle-to-bottle drain coupler model in your browser, then download it for your printer. Free, no CAD needed.

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