Helical Contour

A helical contour is a contour operation that enters the material using a helical (spiral) ramp rather than a straight plunge. This is gentler on the tool and produces a better surface finish, especially for deep cuts.

How It Works

Instead of plunging straight down to each depth level, the tool spirals downward along the contour path, gradually reaching the target depth. This distributes the cutting force and avoids the shock of a straight plunge.

Key Settings

Same as Contour, with the addition of helical entry behavior. All contour settings (cut side, depth, tabs, etc.) apply.

When to Use Helical Contour

• Deep contour cuts where straight plunging would stress the tool
• Hard materials where gradual engagement is important
• When surface finish on the contour wall matters