Thank you for explaining that. I read the forums daily to try to stay up on things but some items, like B7/R3, remain a mystery. I have no idea where to go so that I can read about things like this. Is there somewhere on the Prusa website I should be frequenting?dryja123 wrote: ↑Nov 15, 2018 10:39 pmYou can only get B7 parts directly from Prusa but the parts that are released for at home printing are labeled R3. The reasoning by this is so that if you open a support request and Prusa asks for a picture of your build they can tell if it's an issue due to your print or their print.tim.j3 wrote: ↑Nov 14, 2018 5:27 pmI've printed the Aug. 3 R3 extruder parts available on the Prusa website and compared them to the parts that I received in the MMU 2.0 kit. The kit parts include the R3 and B7 label but I don't see the B7 label on the parts downloaded from the website. What does the B7 stand for, are there different versions of the R3 and are the Aug 3 parts on the website the latest and greatest?