My project has expanded to use standard size servos (link back to my micro servo comparison). Here's a little table that I'm using to compare various options.
| Model | Mode | Size | Wgt | Speed@5V | Power@5V | Speed@6V | Gears | Street |
|---|---|---|---|---|---|---|---|---|
| TowerPro MG930 | Digital | 36.2x15.2x28.7 mm | 26g | 0.14sec/60° | 3.6 kg/cm | 0.11 sec/60° | Metal | $16 |
| Hitec HS-225BB | Analog | 32.4x16.8x30.8mm | 27g | 0.14 sec/60° | 3.9kg/cm | 0.11 sec/60° | Nylon | $20 |
| Hitec HS-225MG | 31g | Metal | $30 | |||||
| Hitec HS-5245MG | Digital | 32.0x17.0x31.0mm | 32g | 0.15 sec/60° | 4.4kg/cm | 0.12 sec/60° | Metal | $48 |
| MKS DS9660 | Digital | 35.0x18.0x28.0mm | 35g | 0.13 sec/60° | 3.7 kg/cm | 0.10 sec/60° | Metal | $57 |
| Futaba S9650 | Digital | 36.0x15.0x29.0mm | 26g | 0.14 sec/60° | 3.6kg/cm | 0.11 sec/60° | Nylon | $65 |
The conversion for torque from kg/cm to oz/in is to multiply by 14.7. So a servo with a torque of 1.0 kg/cm has an imperial torque of 14.7 oz/in.
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