Our hackerspace from Phoenix,AZ "HeatSync Labs" has been working on a Mendel version and will be at the MakerFaire with it. We've arranged for a table for our group, however, we would love to talk about our experience working on it so far. We have the Mendel constructed but we're still having issues calibrating our extruder. Would love to get some input about this stage from other people workiby uberschnitzel - General