Gaps in Floor Corners

In 3D printing, each layer depends on the stability of the layer below it. Striking the right balance between the foundation's strength and the amount of plastic used is crucial. Insufficient foundation strength can result in holes and gaps between layers, particularly noticeable in corners where the part’s dimensions change (e.g., transitioning from a 50mm cube to a 30mm cube). Ensuring a solid foundation is essential to support the smaller dimensions effectively. Below are common causes for weak foundations and how to address them.

Common Causes and Solutions:

Not Enough Perimeters

Increasing the number of outline perimeters can significantly enhance the foundation's strength. Since the interior of your part is often partially hollow, thicker perimeter walls provide better support. For example, if you’re currently using three perimeters, try increasing it to five and see if this resolves the gaps.

Not Enough Top Solid Layers

Insufficient top solid layers can also cause a weak foundation. A thin top layer may not adequately support the overlying structures. If you’re using three top solid layers, increase them to five and check if this improves the foundation strength.

Infill Percentage is Too Low

Finally, review the infill percentage used in your print. The top solid layers rest on the infill, so adequate infill is crucial for supporting these layers. If you’re using a 25% infill percentage, try increasing it to 40% to enhance print quality.