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The Factors And Treatment Methods Of 3D Printing Model Staggered


3D printing models are built by printing one layer at a time. If the layers are not bonded well, the final print may crack or break. What is the reason for the crack or disconnection? For example, the wrong floor. Below, Be-cu.com will make a simple summary for everyone on the causes and solutions of the phenomenon of model “staggered layer” (also called “dislocation”)

The Factors And Treatment Methods Of 3D Printing Model Staggered

The Nozzle Moves Too Fast

In order to save time, we often adjust the printing speed of the model so fast that it exceeds the tolerance range of the motor, so that the motor cannot rotate to the expected position, so that the next printed layer will be different from the previous printed layer. dislocation.

Solution: In the slicing settings, the “shell printing speed” and “filling printing speed” should be adjusted according to the actual machine model used. The printing speed should be set between 40-60mm/s, not exceeding 60mm/s.

The 3D Printing Head Is Blocked During The Movement

There are mainly three situations that cause the print head to be blocked:

1.Wire Knotting

If the wire is knotted during the feeding process, the material cannot enter the extruder smoothly and at the same time, it will create resistance to the movement of the print head, making it unable to move according to the original route, and the printing path of the rest of the model will be offset as a whole. Eventually a split occurs.

Solution: Check whether the material tray is entangled. If the wire is entangled, open the knot, or directly replace the material.

2.Hands Touch The 3D Print Head During 3D Printing

Sometimes the printed model itself and the base are in two colors, and the material needs to be replaced during printing, so it is very likely that the hand will touch the print head when changing the material, causing the print head to shift and produce mislayers.

Solution: In this case, be careful when changing the material, and do not touch the print head. In addition to refueling, the printer tries not to touch the print head when printing the model to prevent it from misalignment caused by deviation of the printing track.

3.The Unevenness Of The Model Prevents The Movement Of The Nozzle

If the printed model has bulges on the surface of some parts in the first few layers, the bulges will continue to accumulate in the next printing, and to a certain extent, it will block the movement of the nozzle, resulting in motor out of step and misalignment

Solution: Observe whether there are obvious protrusions on the surface of the model, and whether the print head will hit the raised parts when passing by. If there is a bulge, it is necessary to analyze the cause of the bulge, whether there is debris on the printing platform or the edge of the model has warped, and then take corresponding solutions.

The Movement Resistance Of The 3D Print Head In The X Or Y Axis Direction Is Large

The high resistance of the print head of the 3D printer is most likely due to the dirty X-axis or Y-axis rods, which will cause the motor to lose step and cause misalignment.

Solution: After the model is dislocated, observe the dislocation direction, and move the print head in this direction by hand. If there is resistance, it means that the polished rod is too dirty and needs to be cleaned with alcohol.

The Glass Plate Is Not Fixed Well During The 3D Printing Process

It is rare that the glass plate is not fixed well, but it is inevitable that the magnet will fall off. If the magnet is found to fall off through observation, just stick it with glue and then print.

The Drive Belt Of x/y Axis Is Too Loose Or Too Tight

The 3D printer controls the print head through the belt on the XY axis. If the belt is too loose or too tight, it will affect the tension of the print head: if the tension is not enough, the belt will slip on the synchronous wheel; if the tension is too strong, it will cause too much friction , hindering the movement of the print head. In this case, the nozzle may not reach the desired position, resulting in misalignment of all layers.

Solution: It is very rare that the printer belt is too loose or too tight to cause layer misalignment. If it is determined through testing that the belts on both sides are inconsistent, it is best to apply for after-sales adjustments.

Finally, when the model staggered layer occurs repeatedly and the phenomena mentioned above are not the cause of the staggered layer after checking one by one, then you need to confirm whether the fasteners on the motor have been tightened, such as the top of the synchronous wheel Wire, top wire of Y-axis coupling.

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