I just bought a LulzBot Mini a week ago and have been printing a few hours each night. I started with PLA (@205), and have been using ABS (@240) for the past 2 days with no issues until last night. At the start of my print, the nozzle clogged, and I followed the instructions here - https://www.lulzbot.com/unclogging-your-hot-end - to clear the clog, and was able to continue printing without any problems. When I tried to print today, the nozzle was clogged again, and tried to repeat the unclogging process, but this time the filament broke off at the base of the heat sink, and there is no way to pull the filament back out.
Is there anything i can do at this point to clear the clog?