Efficiency of DIY bitcoin miners? Answered
First, I would like to say that I do not know if this is the place for this question, but: I have just heard of bitcoin mining and started to look into it. I have learned that pretty much the only way it is plausible is through the use of a machine dedicated to mining the bitcoins, not through using gpu's anymore apparently. But I have seen that these machines are expensive, so naturally I would want to build a DIY one if I started this. But are these dedicated miners even efficient? And what if they don't have the top of the line components? I tried to look this up myself but I don't really understand the hash rates of these machines so I don't know what is considered an efficient rate. And, in my current situation, I don't pay for electricity or internet so now would be an optimal time to do so and maximize profitability. So, do these dedicated miners work efficiently enough to make it worth while to build/buy one? Especially if I don't pay for electricity or internet?