yeah If i can find the point at which abs anneals that will be perfect. I just made a heated bed thats 12x12 270 Watts, instead of glass I used a 1cm thick polished granite tile, I got it up to 120c, after about 20 minutes it was still 95c, man that thing retains heat, and I was measuring on the surface of the tile. the only thing is, it weighs like 6 pounds all together, which is fine for my machine which only moves the bed in the z axis, probably not so good for a mendel machine, or a cupcake.
