Everything else
Carbon Fibre Telescope Tube — 93.5 mm Port Fixed (Circular Radial Hole)
- Bounding box
- 185.1 × 185.1 × 800.1 mm
- Engine
- Precision B-rep
- Parameters
- 30
- Published
- September 14, 2026
Download
Free to download and use. See the terms.
The prompt
Here is the exact correction instruction to paste into Text-to-CAD. It tells the AI to fix only the large hole, not regenerate everything. --- **The large hole at height 724 mm is wrong. It was generated as a rectangular window or slot. Please fix only this feature.** **Correct description for the large hole:** Create a cylinder of diameter **93.5 mm**. Its axis must be **perpendicular to the tube axis** and must **intersect the tube axis** at height **724 mm**. The axis direction of this cylinder is along the **0° datum line** (the focuser centerline). Subtract this cylinder from the tube (**boolean difference**) to create a **circular radial through-hole** that completely penetrates the wall. The result must be a clean **circular hole**, not a rectangular opening, not a side window, not a slot. **Do not change any other holes, dimensions, or features.** Keep everything else exactly the same. Only fix this one large hole, then export the updated STEP file as quickly as possible. --- If the platform insists on regenerating the whole model from scratch, then add this sentence at the end: **If you must regenerate the entire model, keep all other parameters exactly as before, but make sure this large hole is created correctly as a cylindrical radial cut described above.**
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter | 185 mm | 60 – 500 |
| Inner Diameter (bore) | 180 mm | 40 – 490 |
| Tube Length (from primary-mirror end face) | 800 mm | 100 – 2000 |
| Hole 1 Diameter (4 holes) | 4.25 mm | 1 – 30 |
| Hole 1 Height | 5 mm | 1 – 2000 |
| Hole 1 Angle A | 0 deg | -360 – 360 |
| Hole 1 Angle B | 90 deg | -360 – 360 |
| Hole 1 Angle C | 180 deg | -360 – 360 |
| Hole 1 Angle D | 270 deg | -360 – 360 |
| Hole 2 Diameter (2 holes) | 4.5 mm | 1 – 30 |
| Hole 2 Height | 681 mm | 1 – 2000 |
| Hole 2 Angle A | -23.4 deg | -360 – 360 |
| Hole 2 Angle B | 23.4 deg | -360 – 360 |
| Large Circular Radial Port Diameter | 93.5 mm | 5 – 180 |
| Large Port Height | 724 mm | 1 – 2000 |
| Large Port Clocking Angle (0 deg datum) | 0 deg | -360 – 360 |
| Hole 4 Diameter (2 holes) | 4.5 mm | 1 – 30 |
| Hole 4 Height | 724 mm | 1 – 2000 |
| Hole 4 Angle A | 48 deg | -360 – 360 |
| Hole 4 Angle B | 60.6 deg | -360 – 360 |
| Hole 5 Diameter (2 holes) | 4.5 mm | 1 – 30 |
| Hole 5 Height | 767 mm | 1 – 2000 |
| Hole 5 Angle A | -23.4 deg | -360 – 360 |
| Hole 5 Angle B | 23.4 deg | -360 – 360 |
| Hole 6 Diameter (4 holes) | 5.5 mm | 1 – 30 |
| Hole 6 Height | 785 mm | 1 – 2000 |
| Hole 6 Angle A | 0 deg | -360 – 360 |
| Hole 6 Angle B | 90 deg | -360 – 360 |
| Hole 6 Angle C | 180 deg | -360 – 360 |
| Hole 6 Angle D | 270 deg | -360 – 360 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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