OHBO is a cheap tool, designed to be 3D printed, that lets you open a water bottle with one hand. This project was my entry for the Hackaday Prize Assistive Technologies category.
Every story has a beginning.
I needed to open a water bottle, but I didn’t have both hands free. What I did have was a 3D printer, a Prusa i3.
After a few quick sketches, I designed a prototype, printed it… and it didn’t work. So I tried again, and OHBO was born.
From that point on the idea has been to make it simpler, cheaper, nicer and better.
With that I published version 0.1.
https://hackaday.io/project/13295-ohbo-one-hand-bottle-opener
The .stl files are available on GitHub at this link (version 0.1).
Parts needed:
- 1 M3x4mm screw (allen head preferred)
- 1 M5x20mm screw (allen head preferred)
- 1 M3 nut
- 1 M5 nut
The image below shows the assembly instructions.
That’s all for today, I’ll keep posting updates.
See you soon!
[Update (2016-09-04)]
Version 0.2 is out today, with several improvements. The ring design has been refined, and the handle design has been improved to remove the screw.
A bottle-cap opener has also been included as a beta, using a 5-cent euro coin inserted into the side.
I’ve also added an image with all the versions developed so far.
The files are available on GitHub and on Hackaday .
OHBO – One Hand Bottle Opener by Pablo López (Pablopeza) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License .