So on everyone’s recommendation for absolute quality, I ordered an original Prusa Mk2S for my first printer over the Thanksgiving weekend. I received it yesterday and have been attempting to build it, and all I can say is WOW. Either their QA team drove off a cliff or everyone has cripplingly low expecations. First let’s start with the printed parts. I ordered a black one; maybe the orange is different, I don’t know – but at least half the parts have some kind of major defect. Most of them have compressed dimensions in the Z direction and exhibit substantial warping, to the point where they just don’t fit together correctly. The nut traps don’t fit the nuts at all, and most of the screw holes are so tight I had to turn the screws to get them through. There are artifacts everywhere, from melted corners to bundles of extruded strands hanging out. Four of the parts have already cracked between Z-layers, and before anyone says it, I wasn’t over-tightening them. The Y motor bracket cracked at the end-stop mount as soon as the screws were inserted, the X idler cracked around the pulley when I pushed the nut in, the anchor hook literally fell off the fan duct when I slipped it on and the shorter mounting screw for the extruder bound up and broke the extruder cover at the nut trap underneath while still sticking out ~3mm. I’m going to have to reprint basically all of the components before I can have confidence in the printer not simply falling apart. Last night I emailed Prusa about that, but since then I’ve managed to glue it mostly back together and get to electronics, where I find that BOTH of the fans provided have failed wiring. The extruder fan I saw right out of the box, with the positive wire pulled right out of the connector. There were maybe three or four total strands of wire on either piece so it wasn’t done well in the first place. So I soldered that back together, assembled the electronics – finding cut sheating on the extruder thermistor in the process – and got to self-test. That fails because the print fan won’t move, which I carefully go over and discover that the ground wire is disconnected inside the fan, behind the strain relief where it literally cannot have been connected at any point. I’m currently working on putting that back together and hopefully can salvage enough to make this thing actually print some worthwhile parts. Overall I feel I got ripped off for my $600, and essentially paid for a hard parts kit with some temporary bootstrapping parts rather than a complete printer. I can’t recommend this thing to anyone else, and the frustration and feeling of being cheated have fully ruined the enthusiasm I had for this project just a couple of days ago. If it didn’t cost so much more to ship back to Prague I’d be returning this in whole and buying a CR-10 or a Pegasus. http://ift.tt/2jjOFv4