MakerSlide Mendel
A 3d printer using makerslide for the x,y, and z axis. Size only limited by the length of makerslide and size of the heatbed. The one I made uses a 9" x 9" printing surface and it has a lot of extra room around it to go larger. It's currently set up to use a bowden to supply the hot end and an ebay led ring to light up the bed.
Updated 2/6/14: Added files for a fender washer and a rod bracket to mount a rod with a 608 bearing to support the y-axis belt. It keeps it from whipping up and down during a print, when it does it enough, it can the cause the y-axis to randomly lost steps. The belt_bearing.stl mounts to the side of the y-axis makerslides to hold the rod. You'll also need four nuts, two standard washers and a length of all-thread.
Update 3/10/16: Found that the MS_upper_base isn't needed, the z is still solid without them. Discovered that when I moved the bed heater to under the AL bed, which lowered the bed height. The x-axis then hit the upper base before the hotend touched the bed. Also uploaded a few other fixes I've done since the last update, like the springs aren't needed for the z-nut holders.