Hi all, I've got my mind made up on getting a Robo3d once the updated version is out (so I can wait a few months before making major upgrades). There just aren't many machines out there in the sub $1300 range that are as versatile and dont look like I got them out of a crackerjack box. In my quest for a 3d printer I did notice multiple printers with different basic designs, and I was wondering about the benefits of each. there certainly may be many more, but I'm referring to a main design choices on how the machine moves in space to place the plastic anywhere in the three dimensional build area (I am only talking about the extrusion machines, not the laser cures or powder resign etc.) 1) Robo3d style, extruder moves in the X axis along rails and up on the Z axis on a screw, the entire build plate moves in the Y axis 2) Ultimaker style,extruder moves in the X axis and the Y axis, the build plate moves up and down on the Z axis 3) Affinia style, extruder moves in the X axis, and the build plate moves on both the Y axis and the Z axis. 4) Delta machines (just cause they are really interesting to watch), the extruder does all the moving on all axises using a little geometry to determine up and down motion of the ends of 3 arms that together that result in the proper positioning of the extruder. Just wondering why the different design choices are made and we dont see a more consistent accepted "best way" of doing things. The Delta printers of course are the oddball out, as its very apparent why they are both awesome and limiting (typically they get really big really fast for any kind of large build volumes in the X/Y) So any clue why there are so many different ways of doing this?