These docs cover RhinoArtisan 7.0, which is still in beta. The contents are provisional: features and pages can still be added, changed or removed before the final release.
Shanks
Scoop Ring
Scoop
Scoop hollows the inside of a finished band. It carves a channel out of the inner wall along an arc you control, leaving a wall of the thickness you ask for. Less metal means a lighter piece and a cheaper cast, and a scooped band sits more comfortably on the finger — which is why it is standard practice on anything wide.
It works on a band that already exists: run it after the shank, the setting and the booleans, as one of the last steps before the piece goes out.

The Scoop command: the scooped region previewed on the band, with the panel controlling thickness, angles and smoothing
Selection
The Selection section is where the command starts. Pick the faces to scoop — the inner faces of the band, the ones that touch the finger.
All the faces you pick must belong to the same object; a pick spanning several objects keeps only the first one. As soon as a valid pick is made, the original object is hidden and replaced by a live preview of the scooped result, and a circular rail with four handles appears around the ring.
Setting the extent
The scoop runs along an arc, not the whole circumference: the band stays solid where the seam and the setting are. That arc is defined twice over — with numbers, and with the handles on the rail — and the two stay in sync, so drag the handles and watch the fields update, or type the values and watch the handles move.
The arc has two parts. The central arc is fully scooped to the thickness you set. On each side of it, the transition arc fades the scoop back out to the solid band, so there is no step where the channel ends.
Parameters
- Thickness: The wall left behind in the scooped area, in millimetres. This is the number your caster cares about — it is what stops the band collapsing.
- Central Angle: The span of the fully scooped arc, in degrees, centred opposite the seam. The default 108° covers roughly the bottom third of the band.
- Transition Angle: The extra arc, in degrees, added at each end of the central one, over which the scoop fades progressively back into the solid band.
- Transition Inset: How far the end sections of the scoop are pushed toward the centre of the ring, which deepens the ends of the transition and softens the way it runs out.
- Mode: Symmetric keeps both ends of the scoop mirrored around the bottom of the band, driven by the two angle fields. Asymmetric unlocks the two sides so you can drag each end independently — the Central Angle and Transition Angle fields are disabled in this mode, because the handles are the only thing defining the extent.
- Smoothing: How finely the scoop surface is rebuilt. Smooth, Medium and Fine rebuild it to progressively more points, giving a heavier but more faithful surface; Precise skips the rebuild altogether and uses the exact sections. Start on Smooth and go up only if you can see facets on the finished channel.
- Display Wires: Shows the cutting volume and its section curves in the viewport while you work. It changes nothing in the result — it is there so you can see exactly what is being removed.
- Liner: Adds a separate liner shell inside the scoop instead of leaving it open. Turning it on reveals the Liner section below.
Liner
Visible only when the Liner toggle is on.
- Liner Thickness: The thickness of the liner shell, in millimetres.
- Swap Liner: Flips which side of the split the liner is built on. If the liner comes out on the wrong side of the wall, this is the switch that fixes it.
Working with the panel
- Refresh in the panel header recomputes the preview. The scoop is a boolean operation and can take a moment on a complex band — the panel keeps computing in the background while you keep adjusting.
- Accept replaces the original object with the scooped one, keeping its layer and attributes, and adds the liner as separate objects when it is enabled. If you press Accept before a preview has resolved, the panel asks you to refresh first.
- Save defaults in the header stores the current thickness, angles and options as your starting point for the next run. Right-click the same button to clear them and go back to the factory values.