Please pardon the less than stellar photos in this Instructable.
It was created years ago when I had nothing but an inexpensive
digital camera. I hope to update it soon with much better images.
After purchasing numerous gadgets and widgets to cut glass
over the years, I finally
discovered the joys of using a wet tile saw.
They are inexpensive, easy to operate and in my opinion, fun to use.
If you are in need of a straight cut on a glass bottle, especially
a wine bottle, this is right up your alley!
No wires, no candles or flame, no torches or shattered glass after
all that work.
As my intention for the cut glass is for a later project, if you seek only
to cut the top from a wine bottle to use as a glass, you'll find step #3 to
be what you need. Be sure to file, torch or otherwise smooth down the
sharp edges before using it as a drinking vessel.
Be sure to check out Fstedie's instructable
for making drinking glasses out of wine bottles, too!