/diy/ - Do It Yourself

Anonymous Thu Jun 9 07:32:08 2022 No.2403143 [View]
File: 129 KB, 1000x750, IMG_20220609_002222~2.jpg [View same] [iqdb] [saucenao] [google]

Tldr: What light dimmer/ Potentiometer should I get?
Hey /diy/, noob here with a noob stupid question. I'm trying to build a hot wire cutter. I bought 26 guage nichrome 80 wire. The length of the cutter is 10". Using this site https://jacobs-online.biz/calc2.html , I need 600 degrees for foam cutting. It says I need 4.6 volts and 2.14 amps, 10 watts. I probably need more juice for cutting hard plastics, not sure what temp but say I try 800 degrees I would need 5.5v 2.6a 14w.
I have a computer power supply to use for power (pic related), I could draw power from a 12V (yellow wire). I guess it draws 14 amps max given the label.
I need a light dimmer/ potentiometer to adjust the heat but idk what kind would work best and be rated for 12v. What dimmer would you recommend?

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/diy/ - Do It Yourself

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