Wednesday
Nov102010
Cracking off Bottles Into Cups
Wednesday, November 10, 2010 at 07:51AM I've had pretty good luck making glass cups out of bottles through this method. While the break is rarely perfectly straight, it is usually good enough to make a glass out of it.
The comments from the Corning Glass Museum point out that a fine flame works better, and I've used both kinds of torches. The fine flame does seem a bit better, but a plumbers torch works too.
If the bottle has lots of bumps in it and looks irregular, it will probably cut weirdly.
Make your scribe mark straight. The crack seems to follow its directions, so if you scribe at an angle, cut will be at an angle.
I haven't used Dan Rojas's technique since I haven't bought the equipment. His solar oven materials are excellent, so maybe this is a better method too.
Reader Comments (1)
I remember doing this in my Chemistry class although what I did was for the good of my vices. But that was when I was a boy but now that I am a man, I take responsibility on my acts. Because I did drink a lot of wine and beer which made my garage full of it, I decided to do something good for the planet. I tried to recycled glass wine. Glasses now become one of my addictions. I made cups out of them and I can't believe that I have given my mother a set out of it.