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05-02-2016, 12:18 PM #4
Are you talking about the poorly printed wall at the bottom of the print? That looks like a thermal management problem to me. The combination of the 250 degree nozzle temp and the 106 degree bed temp could be keeping the printed ABS material soft. As new layers are printed on top of the soft walls, they don't provide a solid printing surface since the soft material squishes around with nozzle movement. Ragged walls and roundish corners are a common result of trying to print onto material that is too soft. Watch your printing - if you see the print shifting as the nozzle moves around, there's no way the new layer will be printing as good as it would on a solid surface.
As you get higher up on the print, heat soak from the bed becomes less and less of a factor. At some point the printed material is able to cool enough between layers to provide a harder surface to print on, and all of a sudden you start getting crisper corners and better defined walls.
It isn't necessarily consistent on all sides of the print because of room airflow or normal convection airflow from the heat rising off the heatbed. Are you actually using a print cooler like your settings show? That'd be unusual for ABS, but would also explain why not all sides look the same. Print cooler designs rarely if ever cool in all movement directions equally.Last edited by printbus; 05-02-2016 at 03:25 PM.
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05-20-2024, 12:56 AM in Tips, Tricks and Tech Help