Hi!, how are you?
I’m going to tell you how I do to cut bottles or glass jars, to do the Tornado experiment or anything else. Come on, let’s go: You need a nice nichrome wire. I have taken it out of a broken hair dryer. Here there are a few meters. What I do next, is to straighten totally the piece that I want, in this case, one meter or
less. I hang it and put it to red, it will remain totally straight. We will explain an important detail, which electric current applied. Ok, I use a AC voltage regulator, any kind we use in home. I used it to regulate the speed of my old drill.
Basically what it does is deliver the current from 0 to 220 volts, as you go turning
this potentiometer. Then not even I pay attention to the voltage that gives the
resistance, to the nichrome thread. I’m just spinning very slowly until it turns red,
not too much alive so that it does not melt and Break Well, now I put the thread around
of the pot or the bottle that I want to cut and I adjust it with elastic bands. Between the thread and the gums I put some material from this material where the resistors of the
dryer or a bread toaster, as example. If we leave the rubber like this, when heating the
thread, they are broken by the heat, so, I substitute the gums by a piece of fine copper wire,
like this telephone cable, which I tighten giving it a few laps. It can also be done with tape of bodybuilder or painter but, it does not convince me
of the whole result because it softens and it loosens Once the thread is placed, and well
subject, I put the cables of the current with some small clamps. I give it current,
and I leave it to red for … 8 or 10 seconds, more or less. I turn off, and I spit it out
of water. The thermal shock makes the glass open up, that is cracked where it is placed
the hot thread. I loose everything, and that’s how it’s perfect To cut the background, I use
the same method. Previously, I have marked it with a glass cutter of these cheap.
On the line that I have marked, I alternate, red red wire and water jet. A) Yes
successively a few times. If you resist a lot and we see that it does not break after 3
or 4 attempts, because it is the thickest part of the jar, I help him with a few touches. Well, that’s how I cut the jars, this is the method that I use, also serves to
cut bottles, of course. I hope that I can be of help if you ever need it
And nothing more for today. Come a cordial greeting Ciao, see you soon.