Speaking of “poor to mediocre” design, i discovered a needed a large format 3D printer really quickly to print a set of specific parts, so i chucked this together over the long weekend. dont worry, after about 150hours of printing this will be recycled into a much more polished 3D printer. but currently it’s getting the job done.
http://www.youtube.com/watch?v=1fzVej9obaE
Hey, if it works it works. You can put trim around your welded spots to make it look pretty.
Nothing wrong with a welded frame. If the weld distortion can be accounted for then happy days. Hiwin rails to, very nice. Locally bought or cheaper knock offs?