If the print head isn’t hot enough, filament won’t melt consistently, which can lead to under-extrusion and weak bonding between layers. One of the first steps to fixing delamination is to increase the print head temperature. We outline each of these potential fixes below. There are a number of solutions for improving layer adhesion and eliminating the risk of 3D printing layer separation, from adjusting print temperature and speed settings, to cleaning or changing nozzles, to playing with cooling settings. In this article, we are diving into the common 3D printing problem and troubleshooting delamination. But there are also important differences between the two. For example, some of the primary causes of 3D printing layer separation are incorrect print temperature and under-extrusion. In other words, as each new layer is deposited it is prevented from fusing properly with the preceding layer, which causes it to pull apart and crack as it dries.ģD printing layer separation has similarities to first layer adhesion problems (when the first layers of a build do not stick to the print bed resulting in warping). In the 3D printing process, this is caused by poor adhesion between the layers. If you notice that there are horizontal cracks in your 3D print or that layers are coming apart, particularly in the middle of the build, you are likely dealing with a problem known as 3D printing layer separation (aka delamination).
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