Strength Issue:The model looks and prints great, but the problem that needs to be overcome is that the thinnest part of the model is perpendicular to the layer lines, so these can only be used for temporary use or in non-load bearing applications. Also internal stress fractures at the said layer lines, make it almost impossible to reuse if taken off. I tried to see if I can fix it, but I just think that plastic rivets are one of those impossible to print objects without supports.