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Hi all,
I am now building a hexapod robot. There is something wrong on the servos
preformances. Actually, my robot weights 1.6kg, and by calculations my servos
can support up to 2.5kg with normal operations. But when I connected the 6v dc
supply for the servos directly, they did not work as I expected. They did not
provide as much torque as I needed. And I found that the problem was due to
the load. When I test them separately, they all works at its normal operation
level, but when on load, the torque become very small.
What I want to ask is:
1. I used a transformer for the dc supply with maximum 1200mA current draw,
for total 12 servos. Is there not enough current for the servos?
2. Shall I add some voltage and current regulators to the servos rather than
connecting them directly to the supply?
3. If yes, I actuatly do not know how the circuit is, can anyone give me a
piece of advise or give me the schematic?
4. Since I would like to use Nicd battery for future development, can I also
use the same regualtor circuits?
Details:
Hitec HS-422 servos x 12
with 6v dc supply.
Thanks for your kindly attention.
Frankie Lai
97139371d@polyu.edu.hk
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Message has 1 Reply:
 | | Re: Hexapod servo supply
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| I had a very similar problem with my robot. When the servos are under high load (ie holding up your robot) and you try to move them all at once, the current drawn is quite large. I never actually measured how large, but large enough to destroy a 1A (...) (25 years ago, 11-Mar-00, to lugnet.robotics.handyboard)
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