My Robo 3d R1 Plus is only a couple of months old now but getting lots of use. I'm interested in what kind of maintenance I should be doing regularly or periodically to help keep it mechanically sound. Also, what are some good useful accessories. Such as tips with different size orifices or suggested build bed prep products. I'm using hairspray with good results so far but I'm open to other options. A tube of lube came with my machine but I have idea how often or even which parts should get lubed. I'm getting quite an accumulation of filament "crumbs" under the build bed and on my desk and on the floor. I've practically dedicated an old dust buster to the tool collection by the printer but am interested in what others are using to clean up with. Oh, the wife left a "Swifter" near to hand and I've used it a few times with good results, sweeps "crumbs" off onto the floor quite nicely. LOL, I'm planning to upgrade my hot end after my warranty expires but would love to know which upgrade is most populare; the E3DV6 seems well represented but I am reading now about the Volcano. I'm open for suggestions on these and others as well. Basically, I want my printer to last and print well and I'm open to suggestion on how to keep it doing that. Thanks.