Gears and transmission
4WD Robotic Lawn Mower
- Bounding box
- 750.1 × 690.0 × 380.0 mm
- Engine
- Precision B-rep
- Parameters
- 20
- Published
- November 3, 2026
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The prompt
Design a 3D CAD model of a 4-wheel-drive remote/autonomous robotic lawn mower. Solid bodies, dimensionally accurate, in millimeters. Size: 750 mm long, 680 mm wide (including wheels), 380 mm high. Chassis: flat 4 mm steel deck, 460 x 600 mm, royal blue (RAL 5005). A U-shaped square-tube frame (30x30 mm) runs along both sides and across the rear as a bumper/roll bar. Engine: single-cylinder vertical-shaft 7 HP petrol engine at the center-rear, black shroud with honeycomb grille, round yellow logo on top, black fuel cap, orange oil cap. Cutting width about 500 mm. Wheels: 4 agricultural lug tires, 240 mm diameter x 90 mm wide, black herringbone tread, silver rims. Each wheel has its own black cylindrical gear motor mounted on the side frame. Skid-steer layout, ground clearance 80-100 mm. Control box (front): blue steel box, 270 x 130 x 120 mm, with a red emergency stop button, small LCD display, key switch, two small round buttons, and two yellow label plates. Separate named parts: chassis, side frame, engine, 4 wheels, 4 motors, control box. Top view should match the reference photo. Export STEP and STL.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall length | 750 mm | 650 – 1100 |
| Overall width incl wheels | 680 mm | 600 – 900 |
| Overall height | 380 mm | 300 – 600 |
| Ground clearance | 90 mm | 70 – 120 |
| Deck length | 600 mm | 400 – 1000 |
| Deck width | 460 mm | 300 – 800 |
| Deck thickness | 4 mm | 2 – 12 |
| Wheel diameter | 240 mm | 150 – 500 |
| Wheel width | 90 mm | 50 – 200 |
| Rim radius | 70 mm | 30 – 150 |
| Gear motor diameter | 90 mm | 40 – 200 |
| Gear motor length | 140 mm | 60 – 300 |
| Side frame tube size | 30 mm | 15 – 80 |
| Engine length | 300 mm | 200 – 500 |
| Engine width | 280 mm | 180 – 500 |
| Engine height | 260 mm | 150 – 400 |
| Engine rear offset | -90 mm | -300 – 300 |
| Control box length | 270 mm | 150 – 500 |
| Control box width | 130 mm | 80 – 250 |
| Control box height | 120 mm | 60 – 250 |
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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