Leg Module Assembly
A three-degree-of-freedom leg: hip abduction, hip flexion, and knee, each driven by an identical quasi-direct-drive actuator. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
5 top-level lines · 32 rows shown · 228 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Joint Actuator 8 parts | quadruped-robot-joint-actuator | 3× | 3 | 74 | assembly |
| 1.1 | Stator Assembly 3 parts | stator-assembly | 1× | 3 | 3 | assembly |
| 1.1.1 | Stator Core (laminations) | stator-core | 1× | 3 | — | part |
| 1.1.2 | Copper Winding | copper-winding | 1× | 3 | — | part |
| 1.1.3 | Slot Insulation | stator-insulation | 1× | 3 | — | part |
| 1.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 3 | 19 | assembly |
| 1.2.1 | Rotor Shaft | rotor-shaft | 1× | 3 | — | part |
| 1.2.2 | Rotor Core | rotor-core | 1× | 3 | — | part |
| 1.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 48 | — | part |
| 1.2.4 | Ball Bearing | ball-bearing | 1× | 3 | — | part |
| 1.3 | Neodymium Magnet | neodymium-magnet | 28× | 84 | — | part |
| 1.4 | Planetary Gearset 4 parts | quadruped-robot-planetary-gearset | 1× | 3 | 8 | assembly |
| 1.4.1 | Sun Gear | quadruped-robot-sun-gear | 1× | 3 | — | part |
| 1.4.2 | Planet Gear | quadruped-robot-planet-gear | 3× | 9 | — | part |
| 1.4.3 | Ring Gear | quadruped-robot-ring-gear | 1× | 3 | — | part |
| 1.4.4 | Ball Bearing | ball-bearing | 3× | 9 | — | part |
| 1.5 | Motor Housing | motor-housing | 1× | 3 | — | part |
| 1.6 | Ball Bearing | ball-bearing | 2× | 6 | — | part |
| 1.7 | Encoder | encoder | 2× | 6 | — | part |
| 1.8 | Actuator Driver Board 5 parts | quadruped-robot-actuator-driver | 1× | 3 | 11 | assembly |
| 1.8.1 | Bare PCB | pcb-bare | 1× | 3 | — | part |
| 1.8.2 | Microcontroller | mcu | 1× | 3 | — | part |
| 1.8.3 | Power MOSFET | mosfet | 6× | 18 | — | part |
| 1.8.4 | SMD Passive (R/C/L) | smd-passives | 1× | 3 | — | part |
| 1.8.5 | Connector | connector | 2× | 6 | — | part |
| 2 | Upper Leg Link | quadruped-robot-upper-leg-link | 1× | 1 | — | part |
| 3 | Lower Leg Link | quadruped-robot-lower-leg-link | 1× | 1 | — | part |
| 4 | Knee Linkage | quadruped-robot-knee-linkage | 1× | 1 | — | part |
| 5 | Foot Assembly 3 parts | quadruped-robot-foot-assembly | 1× | 1 | 3 | assembly |
| 5.1 | Foot Pad | quadruped-robot-foot-pad | 1× | 1 | — | part |
| 5.2 | Foot Shell | quadruped-robot-foot-shell | 1× | 1 | — | part |
| 5.3 | Pressure Sensor | pressure-sensor | 1× | 1 | — | part |
Used in 1 assembly
Sourcing — likely vendors
Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| 🇨🇳Foxconn foxconn.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| flex.com ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| dixoninfo.com ↗ | Noida, IN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| bydelectronic.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |