Yupp, I have a maxed or board with 6 drivers and a mini with 4 drivers, both are swappable. See my profile for more information, and more in the coming weeks. 

Actually, there is a 1380/10 gearbox with an additional 1/2 reduction via 2 sprockets and a chain. The motor driven at 20Hz equals one revolution for the pig every 18 seconds.

Yes.  From someone who has been doing the electrical layout of these things for the last month, KEEP YOUR AGND SEPARATE!

Yeah, +ThantiK is mostly right. I think, V2.1 is the first 'real' final version. 

Thank you for your support! +Tomáš Vít +varun s +Hakan Evirgen +Andreas Thorn

Indeed I found the heated chamber working well when printing big ABS parts.
Maybe it's 2013 but it's cheap, resistant, easy to work with (sanding, welding, painting...), doesn't destroy the nozzle... I prefer it to other materials, especially for prototyping and testing.

That's what happens when you keep on switching between English and German m( Must have been in there for months now, argh ;) 

+Selva kumaran Thank you, too.

I am busy with transcribing the tutorials in german. I will translate this later to english...

looks like statistically i might be on the loosing side, but here's some food for thought.

i'd go for a combination of a cheap but really good printer (i'll elaborate on that later) with an expandable/upgradable printing head (something along the lines of - http://www.thingiverse.com/thing:1446731 but with the addition of a dovetail slide to replace the whole extruder block held by magnets and some locking lever).
i think a cheap (~300$ maybe i think is doable) printer which produces high quality prints is doable today, especially sourcing parts from china (like mgn-12 imitations, or 10mm steel shafts etc...) i think it's time there would be an entry level corexy machine that does away with 8mm rods and has a stable bed (i've seen the triple lead screw ones, not what i mean).
there are some interesting problems to be solved here, so a new generation of enthusiasts have something else to start with (and not some i3 replica).
i think that a cheap, accurate, upgradable 3d printer could actually make a difference.

...but it's just my 2c ;)