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Cyclone 9.33:1 planetary gear.

The black stuff is sticky grease that I cleaned out and replaced with fresh grease.

The gear ratio is 1 + R/S, where R is the number of teeth in the ring gear, and S is the number of teeth in the sun gear (motor shaft, not shown). In the Cyclone system R = 75, and S = 9.

2007/11/20 18:09:42

Exposure mode: program (auto)
Metering Mode: matrix
Exposure time: 0.0080 s (1/125)
Aperture: f/2.8
Focal length: 8.0mm (35mm equivalent: 37mm)
ISO: 400
Flash: No
File size: 895532 bytes
Camera maker: FUJIFILM
Camera model: FinePix F10
Resolution: 1899 x 1266