Parametric Non-Circular Planetary Gear Generator
This internal project was inspired by this classic demonstration video: https://youtu.be/y2vRkXoTWqc
These gear systems have unique motion properties and exhibit a mechanical analog of the "uncanny valley" with their cognitively dissonant motion and unique geometries.
"Carving" the involute sun-gear teeth along the pitch curve.
Gear System Program Inputs and Output
Arbitrary sun gear pitch curve, lobe and tooth count. (Sun gear is currently constrained to be radially symmetric with an integer lobe/tooth-count ratio)
Circular planet gear radius and tooth count.
Sun/Planet orbit ratio.
Gear tooth profile; Involute, circular, arbitrary or null (pitch curve only)
2D gear profiles for sun, ring and planet gears in DXF-format.
Gear System Program Example Run
Sun gear form& tooth count: Rs = 4 + 4*cos(3*theta), 72-tooth.
Planet gear radius & tooth count: 1, 12-tooth.
Gear tooth profile: Circular.
3:4:7 System: Combined DXF Profiles (left), Pitch Curves Animation (right)
3:5:8 Gear System Prototype
Demonstration Model of 3:5:8 Involute System. Laser cut in acrylic and MDF
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Discussion of your goals and needs is complimentary.