Tiny Planetary Gears Set

A small planetary gears system with a ratio of 4:1 per stage, as many stages as wanted, small, open enclosure to see the gears, and hardware free. The gears are designed with a circular pitch of 2.5mm and they are also slightly beveled at the tips of the teeth to avoid the need of cleaning the excess of material from the firsts layers. The OpenSCAD is not parametric, there's only parameters for clearance (set to 0.2), backslash (set to 0.1), pressure angle (set to 22.5), tolerances between nuts and bolts (set to 0.4) and length of the bolts, sometimes referred as rods. Any other change will not work. To play with the OpenSCAD you will need the following libraries: Public Domain Involute Par... This hosted file keeps creator credit and license details.

Print details

Difficulty
beginner
Materials
PLA suggested; confirm scale and supports in your slicer before printing.

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145.4mm_bolts.stl
STL · 3.0 MB
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1_to_3_stages_kit.stl
STL · 4.6 MB
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1x_stage.stl
STL · 1.7 MB
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1x_stages_kit.stl
STL · 5.9 MB
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2x_stages_kit.stl
STL · 7.8 MB
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planet.stl
STL · 180.4 KB
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planetaryAssembly.zip
ZIP · 5.3 MB
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File metadata

145.4mm_bolts.stl
SHA-256: 7f09db8345a2a454e1b4d4563627c8b7d636a1af53efb64d7b0237b7c1418a16
1_to_3_stages_kit.stl
SHA-256: 4b7cfd4c048e4d0028476658b66c49da0c9dfe9110757ccc921e6aa89295d028
1x_stage.stl
SHA-256: d52463f812ecc4f824947430d6e7f072f166bab2f752dfd7cdaccfd8f063ef7f
1x_stages_kit.stl
SHA-256: 1f54994dc8d1c29366d631c1e636d167e79d791443fe4ce5472e6a0d8cc5f8d9
2x_stages_kit.stl
SHA-256: 98826b3cead020346a9c3099c8f7d93be135ae9f6406236a5ebee8a8640b8e26
planet.stl
SHA-256: 84c5541dcc7a42720974e3f693689a5474d3e4462c8c4f3c5b9cc2f7c128ed18
planetaryAssembly.zip
SHA-256: dd74e4890750ba3aad68baa6c6750f5b94b7baea02bf6089294b0457287cea21

Attribution

Tiny Planetary Gears Set by aubenc (the original source). License: Creative Commons CC0 1.0. Source: the original source