Enclosures and housings
MAT Drop Set Pin - Exploded Multi-Part Model
- Bounding box
- 14.0 × 14.0 × 110.0 mm
- Engine
- Precision B-rep
- Parameters
- 25
- Published
- August 21, 2026
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The prompt
Prompt for CAD Design: Design a 3D model of a lever-type automatic drop set pin for gym weight stack machines, branded as "MAT". Main Components: Main Shaft (Pin): Diameter: 9.6 mm Total length: 110 mm Tip slightly rounded Material: Steel (polished silver look) Body (Housing): Outer diameter: 22 mm Length: 68 mm Cylindrical shape Matte black finish Laser engraved text on the side: MAT (bold, clean font) Lever (Trigger): L-shaped or slightly curved red lever Thickness: 3.5 – 4 mm Length: 38 mm Attached to the side of the body with a pivot pin (3 mm diameter) Color: Bright red In the locked position, the tip of the lever should be able to engage into the weight plate hole below Compression Spring: Located inside the body around the shaft Should allow approximately 30 mm of travel (retraction) End Cap: Black, matching the body Closes the rear of the body Functional Requirements: When the lever is locked and the pin is inserted into the weight stack, the spring is compressed. When the weight stack bottoms out and pressure is released, the spring should push the pin backward by about 30 mm and release the lever. Style: Clean industrial design, suitable for manufacturing, realistic proportions, ready for 3D printing or CNC machining. Please generate a complete assembled 3D model and also separate parts if possible.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout gap | 150 mm | 60 – 400 |
| Shaft diameter | 9.6 mm | 6 – 16 |
| Shaft length | 110 mm | 80 – 150 |
| Shaft protrusion | 42 mm | 25 – 80 |
| Shoulder diameter | 14 mm | 10 – 18 |
| Shoulder length | 4 mm | 2 – 10 |
| Body outer diameter | 22 mm | 18 – 30 |
| Body length | 68 mm | 50 – 100 |
| Body bore diameter | 10 mm | 9.8 – 20 |
| Boss diameter | 8 mm | 5 – 14 |
| Boss protrusion | 6 mm | 3 – 12 |
| Boss position | 12 mm | 5 – 40 |
| Lever length | 38 mm | 25 – 60 |
| Lever thickness | 4 mm | 3 – 6 |
| Lever width | 16 mm | 10 – 24 |
| Lever hook depth | 8 mm | 4 – 12 |
| Pivot pin diameter | 3 mm | 2 – 5 |
| Pivot pin length | 10 mm | 6 – 20 |
| Pivot hole diameter | 3.2 mm | 3 – 5.2 |
| Spring coil diameter | 10 mm | 8 – 16 |
| Spring wire diameter | 1.2 mm | 0.8 – 2.5 |
| Spring free length | 40 mm | 25 – 70 |
| Spring coils | 10 turns | 4 – 20 |
| End cap diameter | 22 mm | 18 – 30 |
| End cap length | 3 mm | 1.5 – 8 |
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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