I have a really bent heatbed pcbPCB, the middle is elevated about 3 mm with respect to all edges.
I have found this thread http://midibox.org/forums/topic/17599-warped-pcbs/Warped PCBs
where, where a heating method is applied by baking a pcbPCB in the oven, as described here: http://www.circuitrework.com/guides/3-2.shtml2 Bow and Twist Repair.
Can this help straightening out a Prusa heatbed pcbPCB? If so, can I apply the heat by the heatbed itself, or do I need to utilize an oven? Will the pressure from the strongly clamped glass plate be enough or will the glass break at these temperatures (given that the heatbed can reach them).