RX-24F, Pro & Cons?have you use it?

Bioloid robot kit from Korean company Robotis; CM5 controller block, AX12 servos..
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3 postsPage 1 of 1

RX-24F, Pro & Cons?have you use it?

Post by wiweet » Sat Oct 20, 2012 7:42 pm

Post by wiweet
Sat Oct 20, 2012 7:42 pm

As an upgrade to my AX-12A humanoid, I want to move to RX-24F. I Know that RX-28 and MX-28 are the most popular dynamixel right now, as DARwin-OP use them, but honestly RX/MX-28 price is beyond my budget.

So I choose RX-24F for my upgrade. What I want to ask here is about the RX-24F Pro & cons, because I had read in other robotic forum that said RX-24F is not a best upgrade from AX-12, mainly due to its tendency to overheat quickly. is it right? as a side note my humanoid would have around 2 or 2.2 Kg weight(including 6 RX-24F that I will used as upgrade).

Anybody have ever got a hand or use RX-24F, please share your experience/opinion please?

regards,

wiweet
As an upgrade to my AX-12A humanoid, I want to move to RX-24F. I Know that RX-28 and MX-28 are the most popular dynamixel right now, as DARwin-OP use them, but honestly RX/MX-28 price is beyond my budget.

So I choose RX-24F for my upgrade. What I want to ask here is about the RX-24F Pro & cons, because I had read in other robotic forum that said RX-24F is not a best upgrade from AX-12, mainly due to its tendency to overheat quickly. is it right? as a side note my humanoid would have around 2 or 2.2 Kg weight(including 6 RX-24F that I will used as upgrade).

Anybody have ever got a hand or use RX-24F, please share your experience/opinion please?

regards,

wiweet
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Post by limor » Sun Oct 21, 2012 2:09 pm

Post by limor
Sun Oct 21, 2012 2:09 pm

the overheating of RX24 and AX18 depends on what you do with the servos. the weight of the robot is one parameter. another parameter is the distance between knee and torso. what kind of walking gaits are you planning to do and how stressful are these motions on which servos? etc.
The need for full torque at fully loaded batteries probably won't happen that often. the best way to check these things is using a physics simulator such as EZPhysics or V-Rep (or Inventor), entering all the inertial data and (with or without inverse dynamics) figuring out how the robot motions are within safe limits of the real torques and power consumption of the servos
the overheating of RX24 and AX18 depends on what you do with the servos. the weight of the robot is one parameter. another parameter is the distance between knee and torso. what kind of walking gaits are you planning to do and how stressful are these motions on which servos? etc.
The need for full torque at fully loaded batteries probably won't happen that often. the best way to check these things is using a physics simulator such as EZPhysics or V-Rep (or Inventor), entering all the inertial data and (with or without inverse dynamics) figuring out how the robot motions are within safe limits of the real torques and power consumption of the servos
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Re: RX-24F, Pro & Cons?have you use it?

Post by UncleBob » Tue Oct 29, 2013 3:31 pm

Post by UncleBob
Tue Oct 29, 2013 3:31 pm

I can talk from experience. My knight templar 2 is made using RX24F. The knee servos do get hot very often. This disrupts my work every 15mins. I am considering mx28 to replace them.

However I will continue to use rx24 for the arms due to its speed. The speed do make a big difference in throwing a knock down punch.
I can talk from experience. My knight templar 2 is made using RX24F. The knee servos do get hot very often. This disrupts my work every 15mins. I am considering mx28 to replace them.

However I will continue to use rx24 for the arms due to its speed. The speed do make a big difference in throwing a knock down punch.
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