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You have "elephant foot". Look at the left end of the grip section of the clip in your second image -- see how the thickness increases toward the top (which was the bottom, against the build surface, when printing)? There are a number of causes for this; in your case, it continues for several layers, so the basic solutions (reducing first layer ...


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You could look into the "combing" option, this may prevent some excessive retracts per layer, reducing the print time. You should add some infill percentage to give the walls stability and provide a base for the top. It is difficult to see if the holes run through the whole object. If so, you definitely need some infill. PLA usually doesn't need a ...


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