Felix 1.0 3D printer
Felix is the IMHO the most practical printer for schools, since it can be easily carried around and since it has a very stable frame
Assembly of the current model, however, requires some soldering skills. Assembly seems to take about 5 to 12 hours depending on your DYI skills. The next version will be easier to assemble according to Guillaume Feliksdal, its creator.
I managed to order a fully assembled and tested version, probably since I am known to help with documentation, but the printer fell off a truck or something and arrived broken. Of course, a fully assembled printer is more fragile, but it was IMHO well packaged in a sturdy box.
The Post Office admitted mishandling, but that will not help me in the short term and it creates overhead for Guillaume.
Soon I'll have it repaired I hope - Daniel K. Schneider April 2012