Brackets and mounts
Pelton Runner Mounting Disc - 14 Bucket Positions
- Bounding box
- 110.0 × 110.0 × 14.0 mm
- Engine
- Precision B-rep
- Parameters
- 11
- Published
- November 12, 2026
Download
Free to download and use. See the terms.
The prompt
Create a parametric 3D CAD model of ONLY a Pelton turbine wheel mounting disc. This is Stage 1 of a two-stage design process. Do not create any buckets, blades, cups, or other turbine components. Design a circular mounting disc that will later hold 14 separate, removable Pelton double-cup buckets. Requirements: - 14 equally spaced bucket mounting positions. - Angular spacing: 25.714 degrees. - Exactly 2 screw holes per mounting position. - 28 mounting holes in total. - A central shaft/hub mounting interface. - All holes must be accurately positioned and symmetric. - The disc must be a separate, solid, 3D-printable component. - No integrated blades or buckets. IMPORTANT DIMENSIONAL CONSTRAINT: The maximum outside diameter of the COMPLETE assembled runner, including all buckets, must be 150 mm. The bare disc diameter must therefore be smaller than 150 mm. Do not guess the final disc diameter, thickness, hub diameter, shaft-hole diameter, bolt-hole diameter, or mounting-hole spacing. First propose suitable dimensions for the bare disc and its mounting pattern. Keep all dimensions parametric and editable. Show: 1. Front orthographic view. 2. Side orthographic view. 3. Isometric 3D view. 4. Dimensioned drawing. The design must be suitable for FDM 3D printing using PETG or PLA+. Export an editable CAD model and provide STEP and STL files. Do not proceed to bucket design. Only design the wheel mounting disc.
Parameters
| Name | Value | Range |
|---|---|---|
| Bare Disc Diameter | 110 mm | 70 – 140 |
| Disc Thickness | 8 mm | 4 – 20 |
| Hub Boss Diameter | 32 mm | 18 – 60 |
| Hub Boss Height (above disc) | 6 mm | 0.5 – 25 |
| Shaft Bore Diameter | 8 mm | 4 – 20 |
| Set Screw Hole Diameter | 3.4 mm | 2 – 6 |
| Bucket Positions (360/N spacings) | 14 count | 6 – 24 |
| Screw Hole Diameter (M4 clearance) | 4.5 mm | 2 – 8 |
| Inner Screw Circle Radius | 33 mm | 18 – 60 |
| Outer Screw Circle Radius | 47 mm | 20 – 68 |
| Hub Base Fillet Radius | 1.5 mm | 0.2 – 3 |
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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