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D-shaft control knob and reference interface

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A shaped grip, a separate face insert and a shaft interface for an instrument control.

An original Vekform CAD design study, shown through CAD views and a rendered workshop scene.

Exploded CAD view of the scalloped knob, separate face insert, pointer and reference panel with shaft — The knob body, face insert and reference shaft shown separately.

A control with a clear grip

The knob brings a scalloped grip and a visible pointer into one small control. A reference panel and shaft show how the assembly is intended to sit at an instrument face.

Assembled CAD view of the knob on its reference panel and shaft — The assembled control on its reference panel.

CAD view of the D-shaped shaft opening and the matching reference shaft — The D-shaped opening follows the shaft profile.

A separate face insert

Two screws retain the face insert in a recessed seat. The separate pointer sits in a shallow pocket in the face.

Half-section CAD view showing the shaft socket, reference shaft and screw-retained face insert — A cutaway reveals the shaft socket and screw-retained face insert.

The individual components

Separating the body and face insert keeps the visible face distinct from the grip and shaft interface. The component view shows how those shapes relate before assembly.

CAD layout showing the separate knob components and reference parts — The component shapes arranged side by side.

The assembly in context

This view places the control assembly on an illustrative workbench.

Rendered workshop scene showing the assembled control knob — The assembled control knob.

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