BMS-210DMH Servo with Feedback wire – (Product archive)

The RCExplorer webshop has permanently closed down. This post is here only for reference. This item is no longer sold. If you wish to modify your own servo to have a feedback wire, please look for a BMS-210 servo elsewhere and then follow the modification instructions found in this build log: Update: Now with stainless steel output shaft. Even more durable! The servo that the tilt mechanism is designed around. It’s strong, precise, and has very little slop in the all-metal gearbox, which is supported by dual bearings. It uses a magnetic induction rotary encoder, which is probably one of it’s best features. Apart from being very accurate and very resistant to wear, it can also protect the servo in a crash by “giving way” when the servo is subject to an impact. We’ve redesigned the original BMS 210 servo to include a feedback wire. This wire is used to accurately determine at which angle the servo is positioned at all times. The wire plugs into the flight controller and the information is used by the TriFlight code to vastly improve the yaw performance of the tricopter. Note: You don’t have to use the servo feedback wire. The servo will work just like any normal servo if you don’t connect the wire. A replacement gear set for this servo is now available. Don’t forget the T5 screwdriver to be able to disassemble the servo. Specifications:
  • Weight: 17.5 grams
  • Dimensions: 23 x 12 x 25.4 mm
  • Voltage range: 4.8-6V
  • Stall current: 1A at 5V
  • Torque: 4.8V: 3.1 kg/cm, 6.0V: 3.9 kg/cm
  • Speed: 4.8V: 0.15 sec / 60° (no load), 6.0V: 0.13 sec / 60° (no load)
  • Gears: All metal
  • Ball bearing: Yes, Dual
  • Motor: Coreless
  • Dead band: 0.002ms (2µs)
  • Spline: 25 teeth (Same as Futaba)
  • Rotary encoder: Magnetic induction

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