RC-Monster Forums - Neu/Castle Hitec BL Servos?

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Neu/Castle Hitec BL Servos?

Is this for real? I saw this today on Facebook, and suspecting yet another tedious April Fools prank, went to the Hitec website for verification. But, it looks like this was posted on their news from Feb of this year: http://hitecrcd.com/blog/?cat=3

Not only are they using Neu/Castle components (I assume motor and controller), they run at 800kHz, use much less current (claiming 1/5 the power of a similar power/speed servo), and they use a magnetic encoder instead of the typical pot.

If this is real, it's sweet! Tear one of these apart and use the motor/controller parts as the drive system for a micro scale vehicle. :smile:

If it's yet another Apr 1 prank, then :whip:

Seems like it's true. Googling gave me the answer that Hitec presented them at the Nuremburg Toy Fair:

http://www.flyinggiants.com/forums/s...ad.php?t=61884

Ooooohhh me likey alot! Running futaba brushless digitals right now but that might have to change here pretty soon.

Wow, 486oz-in with .10 transit time?!?! What's not to like!!

Quote:

Originally Posted by BrianG (Post 403181)

What? Only 2S capable? That's not like Castle. I want a 6S capable servo.:rofl:

Bets on the prices?

Im guessing ~$200 for the base model ( HSB-9360TH ), $250 for the HSB-9370TH & $300 for the monster HSB-9380TH...

Hmm not to bad, torque isn't anything new or marvelous, but at the speed it is quite nice. Amp rating doesn't really matter me, it's not like these servos are going to double your run time or anything like that, it can use as much power as it wants so long as its fast and powerful. The day they make a 600+oz/in, 0.1sec servo will be the happiest day of my life:lol: I would be interested in seeing a test of the 'usable' 486/0.1 to the new futaba HV with 513/0.11 to see how it actually stacks up.

Kieren

Quote:

Looks like a typo on the 9380 as is should be .13 sec. The specs are essentially the same as the 7940/45/50 but sip power and do not slow down as they are heavily loaded. Playing with the sample I got last week, I would hang 10lbs of weight on the highest speed version and it drew only .23A... the similar 7940 was 2.5A. Even when stalling the servos (can handle this indefinitely BTW!) it was only 1A. The servos are also dead silent and the programmability goes way beyond what we have now. You can modify torque zones so that on a throttle for example, you can set the end's so they draw almost no current when reaching a hard stop. Of course there are basic and advanced programmable options and if you get too far out of whack you can just reset to default or a previous configuration from a saved file. Also, each servo can be named and the history of it's usage is logged. So if someone sends a servo in and says it's new, we'll know if it really is!

FYI: These are nothing like the current competitors brushless servos, the motor and circuit have been several years in the making. The performance of the servo does not change above 7.5v so it will stay the same through the discharge of the battery. It also has a regenerative circuit which actually charges the battery when decelerating much like the high end ESC's for R/C cars therefor you'll be able to use much smaller batteries and still have plenty of run time. This is a huge advancement in servo technology as never before have we had so much power with so little current draw; it's like your corvette now gets 50MPG!!!

$179.99/July

Mike.

This is a post from the link j.f.s posted. Looks like the dreams for a fast and powerful servo have been shattered. Also I hope the thing about performance not changing above 7.5v sentence, doesn't mean that torque is the same even when the servo is overvolted. Looks like i'll be sticking with futaba after all.

Kieren

^ It seems like they have a switching circuit built into the servo to power the motor at 7.4V the whole time. That would keep current draw from the BEC or Rx pack relatively constant and so extend run time.

I use a couple Futaba BL servos now but if these are reasonably priced I will have to try them out. :yes:

Since I run bec's I don't see the point of a second switching circuit in the servo. Plus then you can't run them on 8v:neutral:

Kieren

Umm since running them higher has no effect why would you want to? The switching circuit (if present) would keep the servo at full output regardless of input voltage. That is good.

Alright I just read a bit of the Flying Giants thread. It appears there is no Vreg since it's stated that they can be run on lower voltage, though with lower output. A step-up switching Vreg that keeps the servo at full power all the time. I guess that was wishful thinking. Hmmmmmm...

Does Neu or Castle have SENSORED motors?

They didn't, but probably they do now, because IMO hall sensor is a must for BL motors in servos to hold STATIC TORQUE--and it looks like a LOT of static torque there from the spec. We are all aware how a sensorless brushless motor does under very low RPM, static torque holding is more like a mission impossible.

So does that mean castle has their own sensored motors coming? Are we going to have some direct alternatives of Novak and Tekin?

I think the feedback pot acts like the hall sensor...

Quote:

Originally Posted by Overdriven (Post 403202)

Wow, 486oz-in with .10 transit time?!?! What's not to like!!

Agreed...my truggy may get some new love soon!