Single-Hand Bottle Cap Shooter

Single-hand bottle cap shooter  

Update: The lever was reinforced with a threaded stud to increase its durability. More details can be found further down in the description.

Warning: Bottle caps can be ejected backwards. Hold the opener sideways during use, as shown in the GIF below, and keep it away from your head to prevent the bottle cap from flying toward you. Bottle caps can be launched at high speed and may travel a considerable distance, so be mindful of your own safety and your surroundings. Keep your fingers clear of moving parts to avoid pinching injuries. Use at your own risk.
 

 

Finally, you can enjoy a cold drink outside in the beautiful weather — here’s a fitting and fun tool for it.
It is easy to assemble, simple to use, and a lot of fun to make bottle caps pop.

This is a further development of the popular Extremely Loud Bottle Opener. 
https://makerworld.com/de/models/2565168-extremely-loud-bottle-opener#profileId-2841242
 

The design has been revised to enable comfortable one-handed use.

And of course, you can still make the bottle caps pop — whether you’re left-handed, right-handed, or even using both at once ;)

There are countless different bottle shapes, which means the opener cannot fit all of them. I have created print profiles for the two most common bottle types: the German NRW bottle and the Corona bottle. For this, please take a look at the instructions. There are also right-handed and left-handed versions.

Important Information 

Warning: Bottle caps can be ejected backwards. Hold the opener sideways during use, as shown in the GIF below, and keep it away from your head to prevent the bottle cap from flying toward you. Bottle caps can be launched at high speed and may travel a considerable distance, so be mindful of your own safety and your surroundings. Keep your fingers clear of moving parts to avoid pinching injuries. Use at your own risk.

This bottle opener is not a decoration — it’s a functional tool that has to handle force when opening a bottle.  That’s why the following points are important to make sure it works properly.

 

The opener has to fit the bottle exactly. Only when it sits correctly can it apply the necessary force without damaging itself. You can find out how to identify the correct bottle shape in the instructions.
 

Additionally, using the right filament is crucial. Filaments with additives like silk, matte, wood, or similar effects tend to make the print more brittle and less durable, so the bottle opener could break more easily. Even PLA-CF and PETG-CF can be more brittle because of the added fibers. For the best results, regular standard filaments are recommended.

A clear recommendation for the opener base is regular PLA, since it offers high stiffness, barely bends, and is sufficiently durable. This helps maintain an exact fit, even while opening the bottle.

 

PETG works as well, but it’s a lot less stiff and flexes more under pressure. In the worst case, the lever can slip off and get damaged by the bottle cap without even opening the bottle.

 

If you want to use more advanced filaments, I assume you already know how to work with them.

 

There are also plenty of other factors that can vary, like the filament brand, bottle manufacturer, drink temperature, printing process, how the opener is used, and more. I’m trying to make sure the opener works perfectly for as many users as possible. Unfortunately, that won’t be the case for everyone, since there are many factors I can’t control. In any case, I’ll do my best to help if you run into any problems — just reach out.

 

Reinforced lever
 

To increase the lifespan of the lever, I developed a version with a brass threaded stud attachment. The corresponding profile “Reinforced Lever” with both the right- and left-handed lever has been uploaded and remains compatible with all openers available here. The assembly instructions in the attachment have also been updated.
 

You can obtain the required M3x6 Double-pass Knurled Brass Stud via the BOM. By doing so, you also support the project and its further development.

Print Information 

There are currently two print profiles: 
Please only use profiles uloaded by Designer. Other profiles were not created by me and may be outdated.

• Quick and Dirty – Generic PLA Only Profile
  • Layer height 0,24 mm
  • There are 60°+ overhangs that can cause problems with non-PLA filaments without supports
  • Because of this, the surface may have visual imperfections
  • This profile has been thoroughly tested by me and has proven to work well as a tool
  • Print time: approx. 1 hour 7 minutes
  • Filament usage: approx. 30 g
  • Supports usually not required
     
• HiFi – PETG Ready Profile
   
  • Layer height reduced to 0,2 mm
  • The overhangs got reduced, which made the bottom of the Base stronger.
  • The print quality also improved significantly because of that.
  • This profile is compatible with PETG and other non-PLA filaments (although PLA is still recommended for the base).
  • Print time: approx. 1 hour 15 minutes
  • Filament usage: approx. 30 g
  • Supports not required

The opener consists of 4 parts: the base, lever, cover, and nut. Here are the most important print settings for them.

• Base
  • 8 walls
  • 50% gyroid infill
• Lever
  • 4 walls
  • 30% whatever infill
• Reinforced Lever
  • 4 walls
  • 30% whatever infill
  • Support needed!
• Cover + Nut
  • 2 walls
  • 15 % whatever infill
• Print Orientation as shown on the picture

 

FAQ

 

The base broke during the first use, why?

If the base breaks during use, either the opener does not fit the bottle correctly or an unsuitable filament was used. If the opener fits the bottle properly and you are using it correctly, please make sure to carefully read the filament recommendations in the description.
 

The lever wears out quickly, why?

If there are problems with the lever, it is often because it slips off the bottle cap due to the opener not fitting the bottle correctly or because the base flexes too much downward.

I’m having problems with overhangs or spaghetti on the base, what can I do?
The base has 60° overhangs, which normally should not cause any problems with Basic PLA even without supports. If issues do occur, please enable supports or reduce the layer height.

The opener does not fit my bottle. What should I do?
Just contact me, and I will try to help.

 

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