Electric Motor Bottle Opener

San Diego

Electric Motor Bottle Opener

The electric  bottle opener was designed to be able to use with one hand. It uses a small electric motor that is strong enough to twist off the cap of the bottle without much effort by the person using it. It is made of pine wood for the base and backboard, and the rest of the parts are made of 3D printed plastic.

The above bottle opener was designed to open the 500 milliliter water bottle sold by Costco during the summer of 2024 and earlier.

 

Unfortunately, in the fall of 2024, Costco starting selling water bottles with a different design.  The diameter of the cap was slightly larger and the base no longer had the three deep grooves that we used to prevent the bottle from rotating when the motor twisted off the cap.

Take a look at these two photos.  The one on the left shows the bottom of the

original bottle and the one on the right shows the bottom of the new bottle.

We filled the bottles with a red liquid (cranberry juice) to highlight the grooves in the bottle bottoms

So, we had to redesign the bottle “Holder” to accommodate the new design.

Original Design

New Design