Bottle Cap Upgrade
in
3D Rendering Services
held by
alwaysj
Last seen:
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Open
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Choosing Finalist
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Ended
Description:
The challenge is to make a water bottle cap that will fit most water bottles in the USA. This bottle cap must also be able to hold 15-20ml of a thicker liquid. A mechanism in the bottle cap allows said viscous liquid to be dispensed into the water below. The liquid chamber must be sealed until the user decides to dispense. If you'd like a shot at the top prize, please use first prinicples and be innovative.
Yes, there are 2 such caps in China that do this (they don't fit USA water bottles). They are outdated in design and bulky so instead of iterating on existing designs, let's start from the fundamentals. Feel free to observe but not be inspired; we're aiming for something completely new here.
Please prioritize and optimize:
-Sealing
-Bottle compatibility
-User experience/ease of use
-Premium Aesthetics
It might be worth referencing Hy-Conn, an a sharktank product that allows firefighters to connect hoses to fire hydrants instantly instead of the usual 20-30 second delay due to threading.
Its a relatively simple project (besides the threading), and I do want it to be a bit of a challenge, so 3 days it is!
Don't hesitate to ask any further questions and good luck!
Wants:
Secure, leak-proof fit (cap must screw on smoothly with consistent torque and no wobble).Innovative mechanism that allows easy operation (one handed if possible).
Don't Wants:
-Inspired by Chinese design-Bulky
-Overly Complex
-Designs that compromise on reliable sealing or clean dispensing
Ask for Sample:
Please submit a high-level concept design first (simple 3D model or render showing overall cap shape, thread interface on a standard USA water bottle neck, basic dispensing feature, and key dimensions).
This is a focused first-principles design project, so prioritize creative yet practical solutions for sealing, clean dispensing, ergonomics.
Additional Information
PLEASE WATCH THE REFERENCE VIDEO IN THE COMMENTSThe bottle cap may be sports/squirt type bottle cap or the traditional twist open/close. Totally up to you. Again, we're aiming for ingenuity here.
It's also important to note that these caps will be disposable and not reusable so any high cost materials are discouraged ie stainless steel etc.
AI files on their own without CAD or some way to show the working mechanism will not be eligible!
Entries
#62 TWIST-PISTON ISOLATION CAP (TPIC)
by achmadfadlan
#61 SpinFlow Cap
by as_win_pk_
Download Files
#60 TWIST-PISTON ISOLATION CAP (TPIC)
by achmadfadlan
#59 Bottle Cap
by abidrasool
Download Files
#58 SpinFlow Cap
by as_win_pk_
#57 Bottle Cup
by suhermanwinong
Download Files
#56 Bottle Cap Upgrade
by vsnmechdesign
#55 Bottle Cup
by suhermanwinong
Download Files
#54 Multi-Use Refillable Pull & Press Smart Cap
by as_win_pk_
Download Files
#53 Multi-Use Refillable Pull & Press Smart Cap
by as_win_pk_
#52 bottle cap
by Nuftanan
#51 Aurora Cap
by alexcool
Download Files
#50 Multi-Use Refillable Pull & Press Smart Cap
by as_win_pk_
Download Files
#49 Bottle Cap Upgrade
by Aman Ghimire
Download Files
#48 Update
by Manp
Download Files
#47 Bottle Cap
by suhermanwinong
#46 Simple bottle cap
by Manp
#45 Dosing bottle cap improvement
by AR_CAD_SERVICE
#44 Upgraded cap
by as_win_pk_
Download Files
#43 Upgraded cap
by as_win_pk_
Download Files
#42 Proof of concept CAP with thread
by MécaCim
Download Files
#41 One-Handed Rotary Foil-Piercing Dispensing Bottle Cap
by muhammed_cad
Download Files
- AI visualization — mecanisame of prodect
- AI visualization — final prodect easy understand mecanisame
- Solidwork 2020 — Bottle Top Assambly
- Solidwork 2020 — Body Of Bottle top
- Solidwork 2020 — Inner Rabar Bush
- Solidwork 2020 — outter Rabar Bush
- Solidwork 2020 — Alluminiom foil
- Solidwork 2020 — cotting liver
- Blander — Screenshot 2026-07-10 101738
#40 Submit Your Design
by Azadservice
#39 Bottle and screw cap.
by shekiba
#38 TwistShot Bottle Cap
by Sarab
Download Files
#37 TwistShot Bottle Cap
by Sarab
Download Files
#36 Bottle Cap Upgrade
by Mattdos
Download Files
#35 Liquid Dispensing Cap V1(initial concept)
by elbashire
Download Files
#34 DECANT Bottle Cap Upgrade
by Jinen Sheth
Download Files
#33 Single-Action Puncture-and-Dispense Bottle Cap
by Richard_Joe
#32 CAPSIE
by yasht6
#31 bottle_cap_05
by DaBu
#30 Bottle Cap Upgrade
by Busyb
Download Files
#29 bottle cap Actuator
by ridwans
Download Files
#28 Bottle Cap Upgrade
by Mattdos
Download Files
#27 Press type cap
by yaswantr
Download Files
#26 Push pull cap with liquid dispenser
by adamrockler
Download Files
#25 premixed syrup dosing bottle cap
by AR_CAD_SERVICE
#24 Bottle Cap Upgrade
by Mattdos
#23 Water Bottle Cap
by Jaydip_23
Download Files
#22 Bottle cap_2
by clintsar
Download Files
#21 Bottle Cap Upgrade V2
by kevinb6132
Download Files
#20 Bottle Cap Upgrade-C2
by alirezaemamian
Download Files
#19 Bottle Cap
by Tarun Kumar Dutta
#18 AromaPulse
by aminea3
#17 Viscous fluid adding bottle cap
by kevinb6132
Download Files
#16 Water Bottle Cap
by clintsar
#15 FlowCap™ – Premium Integrated Liquid Dispensing Bottle Cap
by calvinceowino
Download Files
#14 Submit Your Design
by Azadservice
Download Files
Discussion
Showing last 20 comments - View All
Any changes
Can You Look At It
hi @alwaysj
im already sent CAD file
im already sent CAD file
is there anything specific you prefer i can change the outlet to flipflop or anything you want.
Hey @alwaysj , any improvements that you would like to suggest?
Hi @alwaysj, concerning your recent comments on this design
, yes tit is configured to US bottles (PCO 1810), and both Native CAD files and STEP files are included in the submission.
, yes tit is configured to US bottles (PCO 1810), and both Native CAD files and STEP files are included in the submission.
@alwaysj
please take a look at my design.
please take a look at my design.
Entry 36 is not reuseable once the button is pressed that's the end
Waiting For your Feedback
Was this design with reusability in mind? We're going for a cap thats single use and to be discarded with the bottle its on.
Solid design. However, would love to avoid foil and any puncturing to avoid fragments in drink. The size and overall appearance matches what I had envisioned.
do you have CAD files?
would like it done without puncturing anything as to avoid fragments in the drink
Very nice. Please make it so its not "hold to dispense" but rather a one time activation that dispenses everything
Is it possible to make this with less parts and also make the dispense rate faster with a bigger outlet
Is this configured to US bottles?
Hi @alwaysj , can you rate recent uploads?
I have uploaded measurement of the contraption. I suspect our cap will hold around 50% or less of the reference.
So far, Jinen and AdamRockler are the closest! If you want a shot at the prize, please reference the video and the submissions of both these gentlemen because it seems from current submissions that any upgrades will have to be based on current models. Squirt, flip top, or twist is up to you but Flip top will be preferred!
Please watch the reference video and try to minimize parts! You're a close contender!
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abidrasool
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