Sun Pablo

Concept 2 of 3

Six-legged capsule module in the spirit of ASV-84

Pantograph legs, tripod gait

  • 6pantograph legs
  • 11.7 twalking mass
  • 0.86 m/minwalking speed
Visualisation: on a cliff above the sea
Visualisation: on a cliff above the sea

About the concept

A walking house module inspired by the 1980s OSU Adaptive Suspension Vehicle. Six planar pantograph legs decouple the axes: one linear actuator moves the foot only vertically, the other only horizontally — so hydraulics are replaced by just two electric drives per leg. The capsule hull with a vaulted roof and panoramic glazing is designed to be built in-house from rolled tubes and 100 mm sandwich panels.

Documentation

All calculations are conceptual, without FEM strength analysis.

Key specifications

HullCapsule 7.9 × 4.0 × 3.1 m, vaulted roof, panoramic glazing
Floor area / volume27.1 m² net / ≈72 m³
Floor level / overall height+1.16 m / 4.0 m
Mass11.7 t walking; 16.2 t parked with snow
Legs6 pantograph legs, 3 per side; foot track 4.5 m; Ø 800 mm foot pads
Drives12 electric, 2 per leg: lift — self-locking trapezoidal screw; stride — ball screw with brake
GaitTripod (always 3 feet on the ground); wave gait (5 feet) on rough ground
Speed0.86 m/min with the selected actuators (0.95 m/min calculated cycle)
Stability margin (tripod)≥ 0.92 m nominal; ≥ 0.72 m with a 3° slope and people moving inside
Max. leg load63 kN
Ground pressure76 kPa nominal / 125 kPa worst case
TurningDifferential stepping: ≈1.5° per half-cycle, radius ≥ 23 m
Power / energyInstalled 21.3 kW, peak 5.6 kW; ≈2.3 kWh per 100 m
EntranceElectric scissor ladder deploying from a cassette under the floor

* All calculations are conceptual, without FEM strength analysis.

Layout

The homes are fully livable: a living room with a view, kitchen, bathroom with shower, bedroom and a technical niche (water tanks, boiler, 16 kWh LiFePO4 batteries, 6 kW inverter).

Rooftop solar: 9 × 430 W panels on the capsule vault = 3.9 kWp, annual average ≈15 kWh per day.

Conceptual estimate. Drawings are labelled in Russian.

  • 27.6 m²net floor area
  • 3.9 kWprooftop solar
  • ≈15 kWhper day (annual average)
Floor plan, Concept 2: capsule 7.9 × 4.0 m, entrance from the stern
Floor plan, Concept 2: capsule 7.9 × 4.0 m, entrance from the stern
Roof, view from above: 9 solar panels on the capsule vault
Roof, view from above: 9 solar panels on the capsule vault

Motion

Tripod gait with pantograph-leg kinematics, sped up ×16.Animation of the CAD model based on calculated kinematics, sped up (factor shown in frame). On-screen labels are in Russian.HDHD video (1280 × 720, MP4)2.5 MB

Visualisations

Renders and diagrams

Photorealistic images are concept visualisations; technical images are FreeCAD model renders and calculation diagrams.

Interested in the project or want to collaborate?