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Layer Separation and Splitting

3D printing works by building the object one layer at a time. Each successive layer is printed on top of the previous layer, and in the end this creates the desired 3D shape. However, for the final part to be strong and reliable, you need to make sure that each layer adequately bonds to the layer below it. If the layers do not bond together well enough, the final part may split or separate. We will examine several typical causes for this below and provide suggestions for resolving each one.

Layers-Splitting-Or-Cracking

 

 

1、Layer height is too large
The diameter of mostfun Pro’s nozzle is 0.4mm. The plastic squeezes through this tiny opening to create a very thin extrusion that can produce extremely detailed parts. However, these small nozzles also create some limitations for what layer heights can be used. When you print one layer of plastic on top of another, you want to make sure that the new layer is being pressed against the layer below it so that the two layers will bond together. As a general rule of thumb, you want to make sure that the layer height you select is 20% smaller than your nozzle diameter. That is to say you can’t go too far past a layer height of 0.32mm, or each layer of plastic will not be able to properly bond to the layer beneath it. So if you notice that your prints are separating and the layers are not sticking together, the first thing you should check is your layer height compared to the size of your nozzle. Try reducing the layer height to see if it helps the layers bond together better. You can do this by clicking “Settings” and selecting the Layer tab.

 

2、Print temperature is too low
Warm plastic will always bond together much better than cold plastic. If you notice that your layers aren’t bonding together and you are certain that your layer height isn’t too large, then is is possible that your filament needs to be printed a higher temperature to create a strong bond. The printing materials of mostfun Pro will perform better in the temperature of 205℃. So if you feel this may be the problem, verify that you are using the correct temperature for the filament you have purchased. Try to adjust the temperature by clicking “Settings——Temperature”.

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