Why does the edge of my 3D Component look very rough?

Aspire is a Pixel-based Modeling program, which means all 3D shapes are approximated by square "pixels" with each pixel assigned a height.

This approach was chosen for Aspire because it has a number of important advantages over other CAD model formats for doing low-relief, decorative type modeling which is the main focus for the 3D modeling tools in the software.

When you zoom in along any edge of a 3D model, these pixels become apparent. However, if the edge becomes too jagged or pixelated, the Model Resolution offers some control as the higher the Model Resolution setting, the smaller the pixel size will be for the same material size and the finer an edge can be approximated.