Discussion

alwaysj

alwaysj

Buyer

Tue, 07 Jul 2026 21:16:26 +0000
I will be uploading photos or videos of the current version on the market for material reference since I see that many of you went with high cost materials. These will eventually be mass produced so please keep cost in mind.
alwaysj

alwaysj

Buyer

Tue, 07 Jul 2026 21:08:30 +0000
vsnmechdesign/justinralphd- Its meant to be filled one time by the company selling it, and then single use after that. No requirement or restriction on whether it can be refilled by user. Please design around the older, 1810 bottle cap.
PN-Liquid will most likely be a syrup with consistency thats close to honey.
alwaysj

alwaysj

Buyer

Tue, 07 Jul 2026 21:02:30 +0000
Richard_Joe Whether you make the cap removable to drink or a squirt/sports type cap is up to you. The Chinese version uses a twist to dispense, and then the user twists off the whole contraption in order to drink. If you can make it dispense and drinkable without removing the cap with some sort of squirt design, more power to you.
Richard_Joe

Richard_Joe

Designer

Tue, 07 Jul 2026 19:04:00 +0000
Hi,

Quick functional clarification before I begin the concept phase:

Should the cap function solely as a dispensing mechanism for the viscous liquid, meaning the user would remove the entire cap to drink from the bottle?

Or, do you envision it as a dual-function cap, one that can both dispense the viscous liquid and allow drinking directly through the cap without removing it?
PN

PN

Tue, 07 Jul 2026 18:32:38 +0000
Hi Lucian,

I second @vsnmechdesign's comment. If you provide few more details and also the type of viscous liquid you're aiming for.
Thanks.
Lucian

Lucian

Administrator

Tue, 07 Jul 2026 18:00:10 +0000
Hello everyone,

Please include CAD files, not just AI-generated images, as those would be mostly useless to the client.

Thanks,
Lucian
vsnmechdesign

vsnmechdesign

Designer

Tue, 07 Jul 2026 15:31:38 +0000
Should the 15–20 ml chamber be replaceable/refillable, or should it be a single-use sealed cartridge?



When you say the cap should fit "most USA water bottles," which bottle neck finish should I design around?

For example:
• 28 mm PCO 1881
• 28 mm PCO 1810
• Another standard?

If there isn't a specific standard, should I simply target the most common PET water bottle thread used in the USA?

I want to make sure the threading, sealing, and compatibility are designed correctly from the start.
justinralphd Tue, 07 Jul 2026 10:16:36 +0000
is the small compartment for the 15-20ml viscous liquid refillable