Generation Green (g2) Bottle Cutter

I purchased this product on Dec. 17 and it arrived Dec. 22, assembled it in about 5 minutes. Took it out to the shop along with an old coffee maker. Set up my bottle for the location of the cut. Set the cutter on its side so the bottle can rest on the lower guide and made a light score cut using only one turn of the bottle. Fired up the coffee pot with just water, poured the entire pot of hot water slowly over the score line. When the hot water was gone I quickly ran it under cold water on the score line and presto, a perfect break. The hot and cold water technique is the easiest for getting a smooth and great surface to finish up with sanding for use of the glass. I would recommend this to anyone who wants to cut bottles or jars, just remember to only make one pass and then use the hot and cold water method(very hot and very cold).

New to cutting bottles into glasses, I watched a handful of YouTube videos. This product seemed to appear user friendly. Operative word is "appear". The first issue was that after two attempts at scoring the bottle, the guide that goes into the top cracked to the point it was no longer effective. (nothing a band-aid of duct tape couldn't handle though). The second short coming is the hardware used to secure the vertical and horizontal parts of the jig. Because wine bottles have a varied design you will need to reset the jig in order to achieve a uniform glass height. The tiny wing nuts are "ok" but you will need a screwdriver to hold the head of the screw while you tighten the wingnuts. Not a big deal except the hardware is cheap so after a few adjustments the head of the screw is starting to round out. A better design would have been a stud or a nutplate. This would have made it less cumbersome to adjust and would allow you to tighten to ensure the jig doesn't move while scoring.

After a long "trial and error" period I have been able to use the jig as it is marketed. It's not quick to adjust and gets the "pain in the butt" stamp. Aside from making your own jig I didn't see anything else out there. One more thing, I didn't have any success with the hot water cold water technique to seperate the bottle. I did however purchase a bernzomatic hand held torch which has been 100% effective at ensuring enough heat is dispersed along the score line.

I would only recommend this item after you have exhausted your search for better. Good luck!

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It does take a bit of skill to use, but the old lady cuts a wine bottle in about 10 min per cutting procedure (ie 10 min per cut), and they're perfect; seats perfectly on the table with very smooth edges when she's done. She's done about 8 now and loves it. Score glass, dunk in hot water, dunk in cold water, dunk dunk dunk and snap; pops apart clean! Use the provided glass-sanding sponge to smooth the edges. Making wedding decorations ourselves now. Jason

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This is basically the same K-Tel type thing that has been for sale for 40 years. And I guess the reason it has been around that long is because it works, though there is a learning curve and you can't expect to get 100 percent success rate. I would put it together and then throw away the instructions because there is a better way.

Best Practices:

score once, not once and a half, not once and a quarter...as close to exactly once as possible. You are not trying to cut through the bottle, just create a fracture point. If you go around more than once you will likely increase the chances of spider cracks where you don't want them.

pour boiling water around the score and then run cold water on it. Repeat as needed. Forget that tapper thing, the bottle will just fall apart if you do the hot and cold right.

Thicker is better. I've had my best success with bigger thicker wine bottles; probably 80 percent. Most beer bottles are too thin and brittle so I barely have a 50 percent success rate.

I wish they had charged a little more and made this a little more beefy; the little wing nuts that have to tightened and loosened often are really flimsy; like you could bend them with your fingers without being a gorilla.

This was an entry level device for me. I eventually want to build a glass bottle wall and will likely get a tile wet-saw so I can do a couple hundred. If your recycling center is like mine, they will gladly let you take all the bottles you want.

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I bought this to make wine bottle lights. I have cut flat glass before, but never wine bottles, so I followed the instructions to the letter. Hours later, I had one unevenly broken wine bottle and 5 others cut and unseparated...I was ready to drink a bottle of wine myself! Here's how I altered the instructions and it happened to work for me.

First, I laid the device on it's side, which helped me to get a smoother, much more even score.

Next, I figured out that using the tapper gave me uneven separation...just put it back in the box.

The directions state that you should alternately dunk the bottle in simmering and ice water 5 seconds in each. That didn't work at all for me. I let the wine bottle sit in the boiling water for more like 30 seconds, and then ice water for 30 seconds. In most cases, it only took one or two dunks for the bottles to separate. Much more successful....and WAY less frustrating!

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