I am working on making a vacuum forming machine, and I need to power a significant length of nichrome wire off of a 120v AC wall socket. I have very little experience in electronics, but I have talked to a few people who are experienced in electronics, and they have suggested using mosfets or PWM for powering long nichrome wire coils. I have done some calculations on what I need to power the wire, and it has very specific voltage and amperage readings (304V at 2.4A to reach 1000deg F). Are those hard numbers? I have talked to my instructor, and they have said that for that length, I should literally just plug a wall outlet into a dimmer switch, and route the dimmer directly to the coiled nichrome. From there I could control the temperature with relative ease. I feel like that is a really bad idea, and that there should be some extra safeguards. I have done a ton of research online but either I am too inexperienced in electronics, or there isn't that much documentation on this specific problem.
The wire is 28g Nichrome 80 4.09ohms resistance/ft
I realize it would be easiest to just buy a space heater from amazon, but it seems like building out a circuit and figuring out all the stuff I need is a valuable experience.