What is wall thickness and wall line count?
wall thickness of two or three times the line width is sufficient. A higher value will create a sturdier model and decreases the chance of leaks, while a lower value can significantly decrease the print time and filament costs.
![the above picture shows infill percentages of 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%](https://i1.wp.com/niltech3d.com/wp-content/uploads/2021/03/infill-100-to-0.png)
![infill 100 to 0 shell lines 4](https://i1.wp.com/niltech3d.com/wp-content/uploads/2021/03/infill-100-to-0-shell-lines-4.png)
Instead of setting a thickness in millimeters, you can also set a number of walls. When you set the wall line count, the wall thickness is calculated and will grey out.
![the above picture shows infill percentages of 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%](https://i1.wp.com/niltech3d.com/wp-content/uploads/2021/03/infill-100-to-0.png)
![infill 100 to 0 shell lines 8](https://i0.wp.com/niltech3d.com/wp-content/uploads/2021/03/infill-100-to-0-shell-lines-8.png)