Oxy-Fuel torch setup

Acetylene, oxygen, some pipes.
That would be the short answer, the long one:
A lot of reading !
Butane or Propane gas ( one of them, do not know which) can also be used instead of acetylene as it is cheaper, but it cuts slower as it can not reach high temperatures as Acetylene.
Preheating is a must on thick material, machine torches always have 3 pipes going to them, 2 for oxygen, one of them used for preheat and the other for actual cutting.
That is about where my knowledge of oxy cutting ends, done about 4 cuts with it, one was a disaster as i did not know about preheating so the part came out all wonky.