you can't build anything with technic legos!
They're good for building frames and stuff, but to give it walls and stuff you have to go with the classical lego brick.
Building a Lego case. You best be having excellent cooling. The lego works like a cooler. If it's cold in there, i'll stay cold. If it gets hot in there, i'll stay hot, becuase if the bricks have 2 walls...it's like insulation to keep heat/cold out.
Lego wouldn't burn, it would melt. That would be a nice thing to happen to the kid w/ the FX-55