One handed bottle open project

by ademczuk, published

One handed bottle open project by ademczuk Jul 29, 2013

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5093Views 621Downloads Found in Kitchen & Dining
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  • Reshaped design
  • Added a second model (magnet lip) with a slot (instead of a coin or paperweight) in case you have two extra 3x6mm cylinder magnets.

I've fit mattarang's attempt parametrically to the standard bottlecap diameter of 28.5mm and space for a magnet of 3mm x 6mm (with 0.3mm space to correct for extrusion width). As a bonus I've beveled the edges. Be sure to print it flat on the printbed and use close to 100% infill as 30% reportedly breaks at the thinnest point.

You can buy the magnets from ebay for under $1 for 10. http://tinyurl.com/m586ry3

This is a work in progress to discover more about the Structural and Legal weaknesses in 3D printing.

Other versions:


Autodesk Inventor trial, about 30mins work.

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Excellent, will make and post.

Patent covered, you shouldn't do that.

I printed one and it failed. PLA, 30 % infill and it failed. exactly at the thinnest part. I will upload a picture soon. I will try at 80% infill, if that doesn't work I will remix it to add some extra strength.

The moment I saw the original one on Reddit I realized that would be so simple to remake for 3D printing. But not being one to open a lot of bottles I didn't try my hand at it myself.

Beware, tho, the Gropener is "patent pending". Could be stepping on some toes here.

maik - in reply to cymon

Is it ok so long as you don't sell it, or does even having an identical model freely available infringe on a patent?

cymon - in reply to maik

Does copying a DVD and putting it available for free online infringe copyright? You don't have to be making money to break the rules.