I've had the C2 for a little over a month now. I've been able to make some high quality smaller prints after some tweaking but am having nothing but issue with larger prints. I've tried printing 2676324 on thingverse four times now. Every time, about 2-3hrs in to the print the front corners of the raft start to curl. It keeps progressing until the entire front of the raft is lifting off the print bed. I've tried new tape, I've wiped it down with rubbing alcohol, I've tried using hairspray and glue but have not had any luck getting larger prints to stick on the front end of the print bed. Any insight or guidance would be greatly appreciated.