UPDATE as of 4/30/15. Hello everyone! I just wanted to show the 3d printer that I have just finished building (well not quite finished), and also share any knowledge that I have gained in the building process (if requested). I choose the "Prusa I3 reworked" design over the Mendel because, well, it's a newer and better looking design, also simpler in my opinion. The reason why I built a printer rather than buying a kit or fully assembled one is because I wanted to learn everything there is to know about 3d printing, and what better way to start off then by building your own printer. I was also hoping that it would be cheaper. I can't think of much to say except list the parts that I'm using and results I'm getting. I'm running an Arduino Mega 260 with RAMPS 1.4 and stepstick (pololu A4988) stepper drivers. 60.8 oz/in Shinano-Kenshi stepper motors. MK2B PCB heatbed. And a reprap discount smart controller LCD screen (has an SD card reader) I'm also running with optical endstops. And last but most certainly not least, an E3D hot end (1.75mm filament, with 0.4mm tip). I can't imagine what it's like to work with those cheap chinese hotends, and I've only heard bad things about getting knockoffs. So I searched and decided to go with an E3D hotend, and I must say, it's GREAT! Works like a charm, and is worth all 8300 pennies! I'm also using Marlin as my firmware, Repetier as my host (If printing from my computer). Please ignore the wiring mess. I'll be rewiring it and moving the screen once I get my dupont connectors in the mail. I build the frame out of 7/16 plexiglass (acrylic), I also made some side supports (all painted black, kind of a theme going here), and later added a sheet on the bottom to add more support (it's really heavy now). So far most of my prints have been bed-adhesion experiments and tuning pieces. Right now I'm in the process of trying different methods to prevent ABS from warping (almost got it). But here are my results: Very first print (ever!) After some z-homing adjustment (second print) And some more random prints and tuning: A filament holder: Some truck identification tags for our fire department (ABS) (middle one is real): And of course my latest print, a Yoda head! (in ABS, you can see it lifted some, but only in that corner) I will continue to upload pictures of what I print. I'm extremely excited to finally be in the world of 3d printing! Let me know what you think, and if you have any questions, please ask! Sorry for the very poor write up.