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HH Servo

Mine died today. About 45-60 minutes worth of use just playing around in the back yard. Haven't even tried rock crawling yet. Sending it back for a refund, not happy.

What were the symptoms ? What made you think it was dead? Did it go boom Or was it a puff of smoke? Mine went hard left all by itself and I had to unplug it to stop it.
 
Mine died today. About 45-60 minutes worth of use just playing around in the back yard. Haven't even tried rock crawling yet. Sending it back for a refund, not happy.
well that just plain sucks. These looked really promising, I know this is only one incident, and poop happens with electronics. I am hoping they don't all act this way and give the hitecs a run for their money....we shall see
 
What were the symptoms ? What made you think it was dead? Did it go boom Or was it a puff of smoke? Mine went hard left all by itself and I had to unplug it to stop it.

I smelt a little smoke and it no longer turns to the left unless the Wraith is in motion.

Sending it back for a refund, they are more than willing to make it right.
 
Sounds like a leg of the driver went out. We have had a few bum servos, but no consistent issues so far. Just like ESCs there is a pretty predictable rate of infantile death.

Almost done with tweaks for the next run. We are making the case better looking and full alloy, have changed the motor rotor for less heat fade over long runs, and are increasing the heat sinking. Also bumped up some component ratings so we can run 8.5 volts and get almost 500 ounce inches out of it :D


Feedback has been overall very positive on these. We are looking at increasing gear reduction a bit so the 6v range hits 400 ounce inch, which would push 8.5v into the 550 ounce inch area. Thoughts on trading some speed for torque?
 
John. Questions: How much voltage is too much? Is there any kind of high voltage (limiting) protection on servos? Some servos are supposed to be able to run off a (7.4)2s battery. Does that mean that we could be running 8.4v for high performance?
 
Sounds like some solid modifications. Thanks for continueing to improve the products we all use in the rigs. I would like to see the torque #'s higher at the sacrifice od a bit of speed in a scale application.

Any ETA on the newest version release ?
 
Even when g6in or bashing I have never thought to myself - my servo is slow...
More power good Sir!
 
Wow I may have to save some pennies up for a few of these! ! Sounding amazing

Sent from my SGH-T889 using Tapatalk
 
The more torque the better. Im not even worried about speed. I would cut way down on speed to raise the torque to know that Im not overworking the servo to go up in smoke every 3 months haha.

I am excited about this servo
 
Sounds like a leg of the driver went out. We have had a few bum servos, but no consistent issues so far. Just like ESCs there is a pretty predictable rate of infantile death.

Almost done with tweaks for the next run. We are making the case better looking and full alloy, have changed the motor rotor for less heat fade over long runs, and are increasing the heat sinking. Also bumped up some component ratings so we can run 8.5 volts and get almost 500 ounce inches out of it :D


Feedback has been overall very positive on these. We are looking at increasing gear reduction a bit so the 6v range hits 400 ounce inch, which would push 8.5v into the 550 ounce inch area. Thoughts on trading some speed for torque?





What are the chances of a servo capable of running on 3s without issues? Not looking so much for 1000 oz of power ( that would be nice) but just direct wiring the servo to the battery.
 
Yeah that would be great, not having to wire another bec, or having one built in that would be castle link comparable!

Sent from my SGH-T889 using Tapatalk
 
I'm working on it. There aren't any off the shelf solutions on drive electronics with that sort of range, so we are having to scour the catalogs for some key components. The biggest problem is powering the CPU, not enough room for a buck converter and analogue regulators would scream for mercy at that input. But it isn't impossible, just a tough task.

The downside to a servo that would run 12v is that on 6v it would have no power. If the motor is wound hot enough to produce power on 6v it will overload on 12v. If it is wound for 12v then it will have 4x less power on 6v.
 
Sounds like a leg of the driver went out. We have had a few bum servos, but no consistent issues so far. Just like ESCs there is a pretty predictable rate of infantile death.

Almost done with tweaks for the next run. We are making the case better looking and full alloy, have changed the motor rotor for less heat fade over long runs, and are increasing the heat sinking. Also bumped up some component ratings so we can run 8.5 volts and get almost 500 ounce inches out of it :D


Feedback has been overall very positive on these. We are looking at increasing gear reduction a bit so the 6v range hits 400 ounce inch, which would push 8.5v into the 550 ounce inch area. Thoughts on trading some speed for torque?

Sounds like a winner in the making. Same price point?
 
The regular tweaks shouldn't change the price much, if any.


The higher reduction gearset should be a drop in fit to existing servos as well.
 
I'm working on it. There aren't any off the shelf solutions on drive electronics with that sort of range, so we are having to scour the catalogs for some key components. The biggest problem is powering the CPU, not enough room for a buck converter and analogue regulators would scream for mercy at that input. But it isn't impossible, just a tough task.

The downside to a servo that would run 12v is that on 6v it would have no power. If the motor is wound hot enough to produce power on 6v it will overload on 12v. If it is wound for 12v then it will have 4x less power on 6v.

What if you were to offer a 'bypass' plug. So there would be a standard servo wire, and this could power the servo up to 2s. Then have a plug or a lead coming out of the servo for powering the motor if someone wants to run 3s.

The servo wire would need to be plugged into the rx regardless because it needs a signal, and at the same time it could be power the cpu.
 
The regular tweaks shouldn't change the price much, if any.

The higher reduction gearset should be a drop in fit to existing servos as well.

Great news, I'm in the market for a new servo and the specs and the fact that it's got the Holmes imprimatur makes this very appealing. How are you going to waterproof the servo? I've been packing hitec servos with dielectric grease and they've been okay so far.

Just got through running my servo for the first time, works great except, it makes a noise like it's trying to find center. It sounds like it is twitching left, right, etc. really fast. Not the buzzing noise Futaba digitals make when at rest (I can silence it by lifting the front end) but, a twitching noise.

I am running a BEC set to 7.0v. It is wired like this.


Anyone know if this is acceptable or is something wrong with it?

All my trucks are wired like this and I have no problems with them.

That's basically how I've wired stuff for years, too. No smoked servos as a result. I pull the signal wire from the BEC into the y and also pull the ground from the y into the receiver. Sounds like pulling these two out isn't necessary if you haven't had any problems, as long as the power from the BEC is only going to the servo.
 
Great news, I'm in the market for a new servo and the specs and the fact that it's got the Holmes imprimatur makes this very appealing. How are you going to waterproof the servo? I've been packing hitec servos with dielectric grease and they've been okay so far.



That's basically how I've wired stuff for years, too. No smoked servos as a result. I pull the signal wire from the BEC into the y and also pull the ground from the y into the receiver. Sounds like pulling these two out isn't necessary if you haven't had any problems, as long as the power from the BEC is only going to the servo.

I never had a problem with this wiring set up.

The problem I was referring to was the servo twitching left, right, left, right, etc. quickly when sitting still. It's not the digital sound of the servo trying to find center.

I re-read my post and see how it is confusing. :oops:
 
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