Sunday, October 18, 2009
1. MASK AND GOGGLES. Obviously there is danger of cutting yourself.
2. tape around a thin strip to cut.
3. place the bottle on a flat surface and rotate it while cutting through that strip. You will need a diamond glass cutting wheel for this. I did not find that lubrication was needed for this.
You do not need to cut all the way through. Once it is scored all the way around it will easily crack. As far as I can tell the diamond cutting discs for dremel or equivalent are the best wine bottle cutting tools.
As for how to smooth the glass edge there is some speculation about the best method in comment section. The best, though not cheapest method may be using a Stained glass grinder.
Cutting wine bottles with acetone and string
Cut wine bottle hydroponics
If the diamond disc from above is still out of stock you could try these: