Thanks. I hope this is the right place to ask. I have an Ultimaker 2. I'd like to print polycarbonate. From what I gather, 255 C is the rock bottom minimum you can print PC at without jamming but 265-270 is much better, and that to achieve reasonable speeds (above 30 mm/s) requires closer to 270. Is there a workaround to the firmware limit of 260C, and if so, will the extra 10 degrees damage the machine? Can the firmware be altered in the UM2 (it has been a while since I've done arduino programming but if someone points me in the right direction I can prolly handle it).