The MS-1.5A servo is developed independently by Makeblock. Its dimensions are similar to common 9g servos.
MS-1.5A servo Earlier 9g servos
Servo hub mounted before delivery Yes No Supporting quick fitting Yes No Compatible with Makeblock metal parts and Lego blocks Yes Yes, but adapter brackets required Physical limit No (The circuits are redesigned to better protect the servo and thus ensuring longer service life.) Yes
With the latest technology in the servo industry, the MS-1.5 servo provides significantly improved performance. The following describes its specifications.
Item 4.6 V 6.0 V
Operating speed (without load) 0.11 ± 0.01 sec/60° 0.10 ± 0.01 sec/60° Operating current (without load) 270 mA ± 50 mA 380 mA ± 50 mA Stall torque (when locked) 1.5 kg ± 0.30 kg·cm 1.8 kg ± 0.30 kg·cm Stall current (when locked) 1200 mA ± 50 mA 1500 mA ± 70 mA Idle current (when stopped) 4 mA ± 1 mA 4 mA ± 1 mA Service life (without load) > 180 thousand times > 150 thousand times
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Note: The servo operates without load when the average value of item 2 is defined.
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Item Specification
Overall dimensions See "Dimensions ." Limit angle No Weight Subject to the actual weight Wire specification JST 2.54mm #30 PVC black-white-red Wire length 260 ± 5 mm (connectors not included) Horn specification 20T Horn type N/A Excessive play ≤ 1°
Item Specification
Control system N/A Amplifier type N/A Operating travel 180°± 5° (500 to 2500 µ sec) Left-right travelling angle deviation ≤ 5° Centering deviation ≤ 1° Neutral position N/A Dead band width N/A Rotating direction Counterclockwise (500 to 2500 µ sec) Pulse width range 500 to 2500 µ sec Maximum travel About 180° (500 to 2500 µ sec)
