Description
<A great deal with a servo model selector>
【spec】
(At 7.4V)
● Torque: 16.0Kg ・ cm Speed: 0.09sec / 60 °
(At 6.0V)
● Torque: 12.1Kg ・ cm Speed: 0.11sec / 60 °
● Size: 40.5 x 26 x 21 mm (low pro type)
● Weight: 51.0g
● Power supply: 6.0-7.4V
(Lipo, Rife, NiMH, NiCad)
● Brushless motor
● Hard alumite aluminum gear
● Dual ball bearing
● Hard servo gear shaft
● Aluminum top case
● Aluminum heat sink middle case
● Black Servo Lead
● Gold-plated connector
● Serial support
● HCS compatible
● Recommended categories
1/10 electric touring, 1/10 electric buggy, 1/10 engine touring
Made in Japan.
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■ Grasper's unique holding power is further strengthened
RC cars these days have evolved and their marginal performance has improved. As a result, some drivers may find the traditional servos unsatisfactory. The new product BSx4 S-one10 Grasper2 has been redesigned from the built-in brushless motor to improve torque and holding power. The servo performance that "bites the road surface", which is the biggest feature of Grasper, has been further enhanced. Even on the latest high-end machines, Grasser 2 has the same holding power. (1/10 category recommended)
[What is holding power]
The holding force is the force that the servo shaft tries to hold on the spot. If this is strong, the steering will be stable. Grasper has meanings such as "grasping tightly" and "grasping firmly", and is a name that expresses the characteristics of this servo that firmly captures the road surface.
■ Torque is increased by 150% compared to the conventional model
The conventional BSx3-one10 Grasper had a torque of 10.8Kg ・ cm (at 7.4V), but his new Grasper2 has improved the torque to 16.0Kg ・ cm. Achieved about 150% increase compared to the conventional model.
■ Implemented a "4S" system that supports serial
The "4S" servo supports serial. By supporting serial, there are the following merits.
(1) Ultra-high-speed communication dramatically improves response
The PWM method is the mainstream control method for RC servos. In the PWM method, the angle is specified by the wave of the signal transmitted from the receiver. On the other hand, in serial communication, the servo angle can be specified numerically. In serial communication, the communication interval can be significantly shortened compared to the PWM method, and the interval from command to operation is greatly reduced. By combining with EX-NEXT's XT mode, we have achieved an unprecedented ultra-fast response as if you were just touching the machine.
② Servo parameters can be changed from the radio at hand
The next-generation radio "EX-NEXT" is equipped with a telemetry (two-way communication) function. "REAL TIME ICS" can be used by connecting the serial compatible servo "4S" to the B / S port mounted from the new receiver KR-420XT. Servo parameters can be set arbitrarily from the radio without having to collect the machine at hand. It's easier than ever to create more flexible and in-depth settings without compromise.
* When using serially, connect to the B / S port of KR-420XT in XT mode of EX-NEXT.
■ Added "Frequency" as a new parameter
Grasper2 can change various characteristics to your liking by ICS, but "Frequency (FREQUENCY)" has been newly added from 4S. "Frequency" is a function to change the frequency of the motor built into the servo. Changing the frequency changes the servo activity. Direct feeling improves by lowering the frequency. The servo operation becomes active and the machine will bend sharply. The higher the frequency, the smoother the servo will move. The activity will be calm and you will be able to bend smoothly. Please select your favorite characteristics while changing the settings.
■ Compatible with conventional systems (PWM)
It can also be used in the popular HCS and normal mode that can be used for a wide range of models.
[HCS]
The communication processing time between the receiver and the servo is compressed to 1/4, and it can be used with a direct operation feeling.
[Normal mode]
It is a system for servo and ESC that has been adopted for many years. It can be used with many receivers.
■ Serial / HCS / normal mode switching method
The servo automatically switches depending on the port connected to the receiver and the mode setting. No additional options are required for mode setting. If you want to use it serially, connect it to the B / S port of KR-420XT. Also, when using with HCS, it can be used simply by connecting to channels 1 to 4 set in HCS. The same applies to normal mode. Of course, it can also be used with KR-418FH and other receivers that have been released so far.
* Only KR-420XT can be used serially. For conventional receivers, use HCS or normal mode.
■ Aluminum top case in new colors of tight black and silver
An aluminum case is used for the top case that supports the [holding power] that does not shake.
By further cutting after alumite treatment, a sharp form with an edge is created. Furthermore, by cutting the inner thickness to the utmost limit, it is lighter than the conventional aluminum case while ensuring sufficient strength.
■ Black servo lead that is easy to handle
Commitment extends to servo leads. The black cable, which looks tight, has the optimum softness for handling while ensuring the required current capacity.
■ 5 patterns of presets are available
Five presets are installed in the model memory of Grasper2, so you can use them properly according to the machine and road surface. Use the servo model selector to switch the servo function that can handle various situations with one servo.
Model 1: For high-grip asphalt course (default)
Model 2: For carpet courses
Model 3: For middle grip asphalt course
Model 4: For GP Touring ST sponge tires
Model 5: Aggressive
* Since the holding power of the 4th and 5th settings is very strong, a creaking noise will be heard when in neutral, but this is not a malfunction.
● Initial value data
The initial value data of each model is published. If you want to return to the initial value during setting, please refer to here.
● Model setting sheet
BSx4S-one10 Grasper2 can change the parameters of each model via EX-NEXT. Please download and use the following sheet for reference of the setting.
ModelSettingSheet_Grasper2.pdf
■ Includes "Servo Model Selector for 4S" which is convenient for switching models
To switch models, use the "Servo Model Selector for 4S" that comes with this set.
* The conventional servo model selector (No.61029) cannot be used.
■ Parameters can be changed from LCD expansion unit 2 EXP-201
The LCD expansion unit 2 EXP-201 that comes with EX-NEXT can also be used as a servo manager device. You can connect the servo to the expansion and set the characteristics to your liking by operating the expansion buttons. Compatible servos are all models equipped with ICS. Of course, it also supports Grasser 2.
* A separate power supply (6 to 7.4V) and a bifurcated cord are required.
* This product does not support parameter changes by the servo manager connected to a PC.
-------【Please be careful】-------
It may vibrate slightly under no load, but this is not a malfunction.
This servo sets parameters to optimize the condition for driving. Therefore, when viewed from the servo alone, the output shaft may generate slight vibrations or drive noise, but this is not an abnormality and does not interfere with operation.
set content
Servo body x 1
Grommet x 4
Horn stopper screw x 1
Servo model selector for 4S x1