Hot Wire Cutter How-To

[firstlegoleague8]

nice video man, this is not a wast of space on youtube it was killing me that i could not find out why all my trys to make one falled this helps a lot thanks

[03jtrix]

could i possbily get the dimensions for this? :)

[03jtrix]

could i just use a transformer to plug it into the outlet for the power supply? lol.. am i making sense.. I'm clueless about this but I'm trying to make this as a class project. :/

[kittyhak]

alright so first thing first i love your video i made mine the same as your except i can find the d battery holders so i use something to plug it into the wall well when i plugged it into the wall the wire instantly melted

[stewie222444]

where can i get nichrome wire at

[montecarlo712]

hey y'all, not to spam, but check me out i dedicated a website to all these questions :)

[smackjackal]

Good video and information!

[yopirate23]

i used a 9 volt battery and mine is shorter but it didnt work and yes i followed instr. exactly

[smokey23quickz]

ok its blue and red will leave you dead green and yellow will leave you mellow and what else

[LTF85199]

What would you say is more responsible for heating: Volts or Amps?

[puppetsandstuff]

frederic470,

I think there are different gauges of the nicrome wire and heavier gauges take more current to heat up. I don't recall if the video listed the gauge but you might need more current.

[smackjackal]

I'm using 16ga wire, which is stated in the video. Yes, the problem is current which I don't go into on this video. There are good resources for this information off of the Wikipedia article titled "Hot-wire foam cutter."

[smackjackal]

My bad, I'm actually using 32ga wire, not 16.

[frederic470]

I connected my nichrome wire to 4 D-cell batteries with alligator clips just like you, but it doesn't get hot at all. I can still touch it and it gets barely warm, and yes my batteries are in series.

please help, any ideas?

[smackjackal]

Try using more current. It's likely that you're using a thicker gauge of nichrome wire that I am. Be careful, though.

For more information that I present here, check out the links listed off of the Wikipedia article titled "Hot-Wire Foam Cutter." There's some good information there about the resistivity of Nichrome wire and current.

[frederic470]

yeah i fixed it, it works now, but batteries run out too fast. would converting an old power supply from a computer to a lab power supply be safe for the wire? (+5V 38A)

[meecheevous]

@frederic470 its better to use regulated power supply so that you can easily adjust the voltage therefore the amount of current will increase and and it produce more heat.

[meecheevous]

@frederic470 its better to use regulated power supply so that you can easily adjust the voltage therefore the amount of current will increase and and it produce more heat.

[magickalmatt]

rad.

[Nazhuret99]

Very fuckin' cool!

[saadeath2]

i cant seem to find that song on youtube?

[infinitevitality]

tks dude.