Right now I have a clogged extruder and have no idea how to take the extruder apart to unclog it. Where is the documentation that shows me how to do this extremely basic thing? I'm totally unfamiliar with the extruder for the R2 and I'm afraid to take anything apart without some guidance. Right now the extruder is clogged all the way up to the hole underneath the gears. I have no idea how to unclog this. It happened right in the middle of a print. You'd think if you went to this link: http://docs.robo3d.com/en/latest/R2/Troubleshooting/index.html#hotend-clogged I would actually tell you how to solve this problem. No, instead it's telling me how to keep it from clogging in the future. Not much help there. It's frustrating.