I have a Sindoh M200. It has printed NOTHING wrong before this model so it is definitely not the printer. I have been a designer for a living for over 7 years and am one of the best among those I have worked with. I might know when I see a bad design. The art behind this is solid. The lack of tolerances for real world printing is the failure. It is okay to listen to others sometimes. Some people have the background and knowledge to know where improvements can be made. This is definitely one of them especially since others mention how difficult it is to get it to work in the first place when they have been lucky enough to get it to work. I needs larger connections between the pieces as well to compensate for the size of the pieces that each joint supports. Plastic does not have the highest tensile strength, especially PLA.