I'm in the process of building a large 3d printer.For the bed, I found a piece of 1/4" thick 12" x 24" aluminum which I think will work nicely.The only problem is there's no heaters anywhere close to those dimensions.(Not that I can find anyway)I was thinking of just getting 2 10-12" x 10-12" ones, but I'm not sure on the best way to make use of them.I'm guessing that as long as my power supply can handle it, I can just tie both heaters together for power.But with the thermistors, I'm not sure if tying them together would work.I'm leaning towards just leaving 1 disconnected and assuming when 1 needs to heat up, the other will need it too, but I'd like to get opinions.Or maybe just getting 1 to place in the center and hope for the best?Has anyone done anything like this before?Any thoughts?Thanks