Enclosures and housings
Water-Filled Olympic Weight Plate (Parametric)
- Bounding box
- 400.1 × 400.0 × 192.8 mm
- Engine
- Precision B-rep
- Parameters
- 39
- Published
- November 1, 2026
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The prompt
Create a detailed 3D CAD model of a modular, water-filled Olympic barbell weight plate. 1. GENERAL SHAPE AND DIMENSIONS Shape: A thick, hollow circular ring (annular cylindrical disc). Outer diameter: 400 mm. Central through-hole diameter: 50 mm. Target internal water capacity: exactly 15 liters. The disc should resemble a professional Olympic weight plate. The outer edges and inner edges around the central hole should be smoothly rounded, with an initial fillet radius of 5–10 mm. 2. INTERNAL WATER CHAMBER The inside of the disc must contain a hollow, continuous ring-shaped water chamber. The chamber must follow the circular geometry of the disc. Target usable water volume: 15,000 cubic centimeters (15 liters). Include internal structural reinforcement to prevent deformation. Account for the volume occupied by walls, ribs and rounded edges when calculating the final dimensions. 3. EXTERNAL REINFORCEMENT Add subtle radial reinforcing ribs on both flat side surfaces. Add concentric circular reinforcing ribs around the central opening. Reinforce the central hub surrounding the 50 mm hole. Keep the design symmetrical and visually clean. The reinforcement must be integrated into the overall disc geometry. 4. INTERLOCKING SYSTEM The front face must have a slightly raised concentric circular ring. The rear face must have a matching recessed circular groove. The raised ring of one disc should fit into the groove of another disc. This feature is intended to align multiple discs when stacked on a barbell. Make the interlocking geometry concentric with the central hole. 5. WATER FILLING SYSTEM Add a threaded water filling port on one flat side of the disc. The filling port must be recessed below the external surface. Include a screw cap with a sealing gasket. The cap must not protrude beyond the flat surface of the disc. Include a separate venting provision for filling and emptying. 6. MATERIAL AND APPEARANCE Material: HDPE plastic. Color: Matte black. Professional industrial product appearance. Smooth rounded transitions. Durable-looking construction. 7. REQUIRED CAD OUTPUTS Generate: A complete 3D model. Front orthographic view. Rear orthographic view. Side view. Isometric view. Cross-sectional cutaway showing the internal water chamber. Close-up of the recessed filling cap. Close-up of the male/female interlocking connection. IMPORTANT: Prioritize accurate dimensions and functional geometry over visual decoration. The 15-liter capacity must be calculated from the actual internal cavity, not the external dimensions. This is a conceptual design and must not be considered structurally validated for weightlifting until independently engineered and tested. make the model parametric, so we can later change the capacity from 15 liters to 8 liters without redesigning the entire disc.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter | 400 mm | 300 – 500 |
| Central Bore Diameter | 50 mm | 25 – 80 |
| Side Wall Thickness | 16 mm | 12 – 30 |
| Outer / Bore Edge Round | 6 mm | 2 – 10 |
| Water Capacity | 15 L | 5 – 30 |
| Chamber Inner Diameter | 120 mm | 60 – 260 |
| Chamber Outer Diameter | 380 mm | 200 – 460 |
| Internal Tie Ribs | 8 pcs | 0 – 16 |
| Tie Rib Thickness | 5 mm | 2 – 12 |
| Tie Rib Start Angle | 22.5 deg | 0 – 45 |
| Interlock Ring Radius | 100 mm | 60 – 160 |
| Interlock Ring Width | 10 mm | 4 – 25 |
| Interlock Ring Height | 4 mm | 1 – 10 |
| Radial Face Ribs | 12 pcs | 0 – 24 |
| Radial Rib Thickness | 6 mm | 2 – 16 |
| Radial Rib Height | 2 mm | 0.5 – 5 |
| Radial Rib Start Radius | 112 mm | 80 – 170 |
| Radial Rib Outer Margin | 10 mm | 4 – 50 |
| Radial Rib Start Angle | 15 deg | 0 – 30 |
| Concentric Hub Ribs | 3 pcs | 0 – 6 |
| Hub Rib Start Radius | 35 mm | 28 – 60 |
| Hub Rib Pitch | 10 mm | 3 – 20 |
| Hub Rib Width | 5 mm | 1.5 – 12 |
| Hub Rib Height | 2 mm | 0.5 – 5 |
| Fill Port Radius | 150 mm | 80 – 180 |
| Fill Pocket Diameter | 40 mm | 20 – 60 |
| Fill Port Floor Thickness | 3 mm | 1.5 – 8 |
| Fill Port Bore | 20 mm | 8 – 32 |
| Fill Cap Diameter | 35 mm | 16 – 56 |
| Fill Cap Height | 8 mm | 3 – 16 |
| Cap Hex Drive A/F | 8 mm | 3 – 20 |
| Gasket Outer Diameter | 28 mm | 14 – 50 |
| Gasket Thickness | 3 mm | 1 – 6 |
| Vent Port Radius | 150 mm | 80 – 180 |
| Vent Pocket Diameter | 16 mm | 8 – 30 |
| Vent Port Floor Thickness | 6 mm | 1.5 – 10 |
| Vent Port Bore | 7 mm | 3 – 16 |
| Vent Plug Diameter | 11.5 mm | 6 – 26 |
| Vent Plug Height | 6 mm | 2 – 14 |
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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