Instructables

Catapult Bottle Opener

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Picture of Catapult Bottle Opener

Hello,

I want to present you my prototype of a bottle opener, which reminds me of some kind of catapult.

First of all, here's a video of how it works

In the video you cant see how far the bottle cap flies, but i can tell you: It flies through the whole room and you might have to search it. And beware: Dont let somebody stand in front of the bottle opener, he might get hurt ;-)

PS:I hope you can understand me, Im from Germany ;-)

 
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Step 1: What you need

Picture of What you need
  • scrap wood (~0€)
  • a screw with a "V-shaped head" (~0€)
  • 8 small nails (~0€)
  • some metal stick or a longer nail (~0€)
  • a drill
  • a screwdriver
  • a hammer
  • ~1h of time
  • (optional: friends to impress ;-P )

Step 2: Start constructing

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Well,

this wood construction is not really hard to create, even for beginners.

You just need the attached sketch and follow these steps:

  1. Cut your scrap wood
  2. Optional, but recommended: sand and paint or oil or varnish the wood
  3. Nail the wood together
  4. Drill the holes for the metal stick
  5. Screw the screw into the lever
  6. Put all parts together

Done :-P

I think this undetailed description is sufficient to create the bottle opener, because its really simple.

Step 3: Prototype thoughts

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I initially made this bottle opener for 0,33L bottles but after some tests, it sometimes (not often) happened, that the 0,33L bottle foamed over.

So, I tested the bottle opener with 0,5L bottles and they never foamed over.

--> If you want to create this bottle opener for 0,33L bottle, you have to construct the lever a little bit lower, with a similar angle like with the 0,5L bottles.

OK,

hopefully you like it and "PROST!"

JoeB2211 days ago
Pretty fun build!! Planning on cleaning mine up a bit.
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guspac8819 days ago
Built two but without using measurements from the post. Genius!
Eh Lie Us!20 days ago

Wow, very clever. If I build this, I will wear goggles 1st! :)

suni37320 days ago

super........

Ugifer22 days ago

This looks like it should be the end move in a fantastic machine involving candles, swinging arms, burning strings, bowling balls etc and ultimately resulting in the opening of your beer!

Fab' idea.

M3G22 days ago

Awesome!

This is awesome! And to think I've been opening bottles with a regular old bottle opener this whole time!

Jobar00722 days ago

Google "Traction Trebuchet". That's what you've made to open bottles. Very cool.

artwell23 days ago

Good build!.

To address the problem of the 0,33L (or as we in the USA would say, 12 ounce) bottle, consider a fold-down block of wood fastened next to the uprights. It would increase the price of the device by the cost of a hinge, unless you have a box of salvaged hinges, as I do.