SO-100 vs SO-101
Both arms live in the same upstream repository; every row cites it or a vendor wiki. Other arms are out of scope here.
| Topic | SO-100 | SO-101 | Source |
|---|---|---|---|
| Generation | Original arm by TheRobotStudio with Hugging Face; documented in SO100.md, marked deprecated. | Next-generation version of the SO-100. | src (2)
|
| Assembly | Leader servos needed gear removal. | "easier to assemble (no gear removal)"; leader uses differently geared motors instead. | src (2)
|
| Wiring | Brackets without wire grooves. | "improved wiring": shoulder and elbow motor brackets carry wire grooves (Waveshare notes the grooves differ; Seeed calls them cable clips). | src (2)
|
| Leader servos | Same servo model at every joint (7.4V STS3215); vendors report modified gearing. | Three gear ratios: 1:191 at joints 1 and 3, 1:345 at joint 2, 1:147 at joints 4–6, all 7.4V. | src (2)
|
| Base attachment | One more base attachment part, fixed to the base with screws. | Base motor holder only. | src (1)
|
| Print settings | PLA, 13% infill. | PLA+, 15% infill; same nozzle/layer options. | src (2)
|