I got tired of waiting forty or more minutes for my PCB heated bed to get to 110, so I decided to do something about it.
I went to the home improvement store and got a 8mm x 300mm slab of granite and asked them to cut it to 200mm square. (I actually had to ask them to cut it to 7-7/8" because you say mm and they just give you a dumb look.) When I got home I put it on my smooth top stove (which has a burner big enough to accommodate this) and heated it to 150, using my IR thermometer to measure the temp. I removed it with a set of pliers, set it on a board for transport, gently laid it on my naked bed, and turned the bed on. I held my glass about an inch over the stone and slowly lowered it to the surface of the stone to give it time to heat up without busting. Within ten minutes my bed was at 110. I slid the glass back until it was offset from the stone about an inch, lifted one end of the stone with a knife, grabbed it with a pair of pliers, and slid it out from in between the stone and the glass being sure note let the glass crash down onto the bed. Clipped the clips and I was ready to go.
I went to the home improvement store and got a 8mm x 300mm slab of granite and asked them to cut it to 200mm square. (I actually had to ask them to cut it to 7-7/8" because you say mm and they just give you a dumb look.) When I got home I put it on my smooth top stove (which has a burner big enough to accommodate this) and heated it to 150, using my IR thermometer to measure the temp. I removed it with a set of pliers, set it on a board for transport, gently laid it on my naked bed, and turned the bed on. I held my glass about an inch over the stone and slowly lowered it to the surface of the stone to give it time to heat up without busting. Within ten minutes my bed was at 110. I slid the glass back until it was offset from the stone about an inch, lifted one end of the stone with a knife, grabbed it with a pair of pliers, and slid it out from in between the stone and the glass being sure note let the glass crash down onto the bed. Clipped the clips and I was ready to go.
