STL Resolution Options

Deviation controls how far facet edges are away from model edges. The images below show the effect of Max distance on the mesh of a cylinder. These examples keep the Aspect ratio fixed at 3 and the Facet maximum edge length set to 4mm.

Max Distance = 0.75mm Max angle = 20-degrees	Max Distance = 0.01mm Max angle = 20-degrees

Notice how the settings change the facets along the edge of the circle. The interior is a flat plane, so 45-degree triangles are the most efficient facets.

The example on the left shows the default Max distance of 0.75mm. This refers to the gap seen in the zoomed-in (top) image. Decreasing the Max distance to 0.01mm results in more facets along the edge, which brings the facet edges closer to the cylinder edge, as seen in the example on the right.

Similarly, decreasing the Max angle will result in more facets along curved edges. This example shows the result of decreasing the Max angle from 20 degrees to 1 degree.

Max Distance = 0.75mm Max angle = 1-degree

Without a fixed Aspect ratio and without a Max edge length, you can get more distorted triangles as shown in the following images.

No set Aspect Ratio or Maximum Edge Length Max Distance = 0.75mm Max angle = 20-degrees	No set Aspect Ratio or Maximum Edge Length Max Distance = 0.75mm Max angle = 1-degree	No set Aspect Ratio or Maximum Edge Length Max Distance = 0.01mm Max angle = 20-degrees