Here's a neat video that shows you how to cut a glass bottle without using a saw:
I have a bottle cutter, it is just 2 tin "V" blocks and an adjustable base., It has a cutting wheel on one block. I scribe a light line and then heat the scribe line over a candle while rotating the bottle untill it is pretty warm( about 10 rotations) my instructions said hot at line warm at ends) then I stick the bottle, neck down into a pail of cold water just over the scribe mark ( the candle soots up the mark so I just use the soot mark as my line) it pops off in about 15 seconds. If it don't come of or only comes part way I heat and dip again.
. My cutter is old but I saw some like it still NIB on ebay last month for about 25 dollars.
Wear safety glasses and gloves, I had a bottle shatter while drilling a hole in it once.
Awesome technique!! Thanks. Can't wait to try that!
Hey guys, I just joined this forum and had to comment on this thread. I like to make my slides so that they LOOK like a nasty ass broken bottle neck, you know the kind that some good ol boy found on the barroom floor, picked it up and started playing with his new found slide/slice-n-dice weapon. To get this look break your bottle. Then using 120 grit SILICON CARBIDE sandpaper lightly sand the jagged edge, but just the edges! I'm a retired glass cutter with years of experience cutting window glass. The only part of the glass that will cut you is that razor sharp edge.
I'm not at home for a couple of weeks, but just had to grab an empty bottle for a demo pic. The bottle broke leaving me a shorty(broke it with a crescent wrench) About 2-3 minutes of light sanding and checking for sharp spots and I was done. You could ride from Jackson,MS to Chicago sitting on that jagged looking edge and not get a scratch.