FIG.01 · Helix Robotics · 2025
Planetary Gearbox
Compact 3-stage planetary reducer for a 6-axis collaborative arm. 120:1 ratio in a 92 mm envelope.
GearingFEADFM
Interactive — drag · scroll to zoom
Specifications
RATIO
120 : 1
TORQUE
84 N·m
BACKLASH
<3 arcmin
MASS
0.71 kg
Process
How it came together.
01
Brief & Constraints
Mapped functional requirements, packaging, load cases, and manufacturing process.
02
CAD & Analysis
Iterated geometry against FEA and tolerance stacks until margins were clean.
03
Build & Test
Prototyped, instrumented, and verified against the original spec sheet.
Next project
Topology-Optimized Bracket