AI CAD prompt: Imported stand arm with accessory mount

Copy the authorized existing non-parametric folding stand into a new private document. Select original component 1 by observed identity and topology; retain it as Source part and exclude the other assembly members from this component-only output. In the inspected source, the long arm has an exterior plane at Y=0, Z=0..30. Verify these source-specific coordinates before proceeding. Keep the original library document unchanged.

1. Create **Accessory pad**, a 60 × 6 × 24 box, centered at X=-180, Y=2.5, with its bottom at Z=3.
2. Unite **Source part**, **Accessory pad** as **Arm with mounting pad**. Require one connected result.
3. Create **Accessory socket**, a 22 × 8 × 14 box, centered at X=-180, Y=6, with its bottom at Z=8.
4. Create **Left fastener**, radius 2.6, height 16, initially along +Z, with its base center at (-203, -8, 15).
5. Rotate the current **Left fastener** solid -90 degrees around world X through [-203, -8, 15]. Resolve the actual current entity ID before the operation.
6. Create **Right fastener**, radius 2.6, height 16, initially along +Z, with its base center at (-157, -8, 15).
7. Rotate the current **Right fastener** solid -90 degrees around world X through [-157, -8, 15]. Resolve the actual current entity ID before the operation.
8. Subtract **Accessory socket**, **Left fastener**, **Right fastener** from **Arm with mounting pad**, consuming the tools; name the result **Imported arm accessory mount**.
9. Create **Left recess relief**, a 26 × 2 × 3 box, centered at X=-197, Y=0.5, with its bottom at Z=20.
10. Create **Right recess relief**, a 26 × 2 × 3 box, centered at X=-162, Y=0.5, with its bottom at Z=20.
11. Subtract **Left recess relief**, **Right recess relief** from **Imported arm accessory mount**, consuming the tools; name the result **Open recess reliefs**.

## Public controls

| Control | Default | Range | Step | Meaning |
| --- | ---: | --- | ---: | --- |
| Accessory socket width | 22 | 16–28 | 1 | Width of the added socket, leaving the original arm behind it intact. |
| Accessory socket height | 14 | 10–18 | 1 | Height from the fixed lower edge at Z=8. |
| Left fastener radius | 2.6 | 2.2–3.2 | 0.1 | Radius through the added pad and local original arm wall. |

All unlisted dimensions, topology and feature order remain fixed. Radius controls are radii, not diameters. These are independent numeric ranges; do not introduce unsupported formula bindings or assume a fit standard from an example value.