Brackets and mounts
Passive Dual-Axis Self-Leveling Platform (Exploded)
- Bounding box
- 3810.0 × 460.0 × 80.0 mm
- Engine
- Precision B-rep
- Parameters
- 44
- Published
- October 5, 2026
Download
Free to download and use. See the terms.
The prompt
Create a realistic, manufacturable 3D CAD assembly of a Passive Dual-Axis Self-Leveling Platform using a Gravity Roller and Differential Cam Mechanism. Main structure - Fixed Base Frame: 550 × 450 × 70 mm, MS rectangular tube 30 × 30 × 3 mm - Top Platform: 500 × 400 × 10 mm - Two perpendicular gimbal axes: Pitch + Roll - Use Ø20 mm shafts and 6204 bearings - Leveling range: ±15° on both axes - Design load: 20 kg Gravity Roller Place one horizontal steel gravity roller at the exact centre below the platform. - Roller: Ø50 × 100 mm - Shaft: Ø20 mm - Add a concentrated 3–5 kg weight below/inside the roller so its centre of gravity stays below the roller axis. - The roller assembly must be free to move relative to the tilted base due to gravity. Differential Cam Mechanism Create two separate cam systems, perpendicular to each other: - Cam 1 = Pitch correction - Cam 2 = Roll correction - Cam diameter: Ø160 mm - Thickness: 12 mm - Bore: Ø20 mm - Base radius: 60 mm - Working radius: 60–80 mm - Use a smooth eccentric/non-circular cam profile Each cam must be mechanically connected to the gravity roller. Cam Follower + Linkage For each cam: - Roller follower: Ø25 × 12 mm - Follower shaft: Ø10 mm - Upper link: 180 mm centre-to-centre - Lower link: 160 mm centre-to-centre - Links: 25 × 8 mm - Link pins: Ø10 mm Use real revolute joints, bearings, shafts, spacers and brackets. No floating or disconnected parts. Critical working principle The mechanism MUST work in this exact sequence: Base tilts → gravity roller moves toward its lowest position → roller rotates/moves the differential cam → cam pushes the follower → follower moves the linkage → linkage rotates the corresponding gimbal axis in the OPPOSITE direction → top platform returns toward horizontal. Pitch cam controls front/back leveling and roll cam controls left/right leveling. CAD requirements Make all major components separate and assembly-ready. Show: 1. Complete isometric assembly 2. Front, side and top views 3. Bottom cutaway with the gravity roller, both cams, followers and linkages clearly visible 4. Cam-follower close-up 5. Section view through the centre 6. Exploded view 7. Motion positions at 0°, 10° and 15° base inclination The roller → cam → follower → linkage → gimbal → top platform connection must be physically obvious in the CAD model. Use realistic mechanical clearances and prevent interference. No motor, electronics, sensor, actuator, hydraulic or pneumatic components.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 100 mm | 20 – 400 |
| Base Frame Length | 550 mm | 300 – 900 |
| Base Frame Width | 450 mm | 200 – 800 |
| Base Frame Height | 70 mm | 20 – 200 |
| Tube Size | 30 mm | 10 – 80 |
| Mounting Pad Height | 10 mm | 0 – 40 |
| Platform Length | 500 mm | 200 – 900 |
| Platform Width | 400 mm | 200 – 800 |
| Platform Thickness | 10 mm | 3 – 50 |
| Attachment Hole Dia | 10 mm | 2 – 30 |
| Hole Inset | 40 mm | 5 – 150 |
| Gimbal Shaft Dia | 20 mm | 6 – 60 |
| Gimbal Shaft Length | 460 mm | 100 – 900 |
| Bearing OD | 47 mm | 20 – 120 |
| Bearing Width | 14 mm | 4 – 40 |
| Bearing Block Length | 60 mm | 20 – 200 |
| Bearing Block Width | 60 mm | 20 – 200 |
| Bearing Block Height | 60 mm | 20 – 200 |
| Spacer OD | 25 mm | 10 – 80 |
| Spacer Thickness | 5 mm | 1 – 30 |
| Roller Dia | 50 mm | 10 – 200 |
| Roller Length | 100 mm | 20 – 400 |
| Roller Shaft Dia | 20 mm | 6 – 60 |
| Roller Shaft Length | 160 mm | 40 – 600 |
| Counterweight Length | 80 mm | 20 – 300 |
| Counterweight Width | 60 mm | 20 – 300 |
| Counterweight Height | 40 mm | 20 – 300 |
| Cam Base Radius | 60 mm | 20 – 200 |
| Cam Working Radius | 80 mm | 30 – 250 |
| Cam Thickness | 12 mm | 3 – 50 |
| Cam Bore Dia | 20 mm | 6 – 60 |
| Follower Roller Dia | 25 mm | 8 – 100 |
| Follower Roller Width | 12 mm | 3 – 60 |
| Follower Shaft Dia | 10 mm | 3 – 40 |
| Upper Link Length | 180 mm | 40 – 500 |
| Lower Link Length | 160 mm | 40 – 500 |
| Link Width | 25 mm | 8 – 100 |
| Link Thickness | 8 mm | 2 – 40 |
| Link Pin Dia | 10 mm | 3 – 40 |
| Bracket Length | 120 mm | 30 – 400 |
| Bracket Width | 80 mm | 20 – 300 |
| Bracket Thickness | 5 mm | 1 – 30 |
| Bracket Hole Dia | 10 mm | 2 – 40 |
| Bracket Hole Inset | 20 mm | 5 – 150 |
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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