Tips for the trade, they seem more obvious now than while you’re working.

• Research the styling and build area of your printer(s)
• Research your filament … ik “duh”

Now some time has passed. Congrats you got the one you wanted! Yay, time for maintenance lol.

• First off, throw the idea of “nice and snug” out the window for some parts because that will
  cause a lot more problems than the initial situation.
• When feeding a new printer, you’ll probably get a quick burning smell… this should be ok it’s
  both a coating on the heating core and the nozzle for shipping.
• When disassembling your printer, and I can not emphasize this enough, do not just put your
  bolts down. This has caused me to loose a set of setting screws and a set of heater bolts
  on my flashforge dreamer. Get a small … no, first print should be a tool bin for some kind for
  foresight.
• If you are disassembling the heads, extruder nozzles, via a full deconstruction then be
  careful on how much strain you may put on some wires. This can cause a shorter wire life or
  immediate terminal head damage depending upon the weight.
• If you can see the gears to the feeding system get a pipe cleaner or a stiff, narrow, brass
  bristle brush. With this hold it at the mouth of the gears and set it to feed for a brush, for the
  cleaner just put it in about half way and hold it for a bit. This cleans the crap that will develop
  in the teeth of your gears. This happens quite often, depending on your printing schedule.
• If you have a model like the flashforge dreamer, very nice I highly recommend, then when you
  disassemble the heads the feeding system will be a spring loaded armature and a gear. If you
  need to maintenance this piece be very careful for the spring. Then upon assembly do like I
  said before throw the “nice and snug” out the window and into a dumpster on pick up day.
  That shit doesn’t need to be extremely tight, you’ll get the feel for what it needs with practice
  but don’t go ham on that one bolt.