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-   -   Neu/Castle Hitec BL Servos? (https://www.rc-monster.com/forum/showthread.php?t=29697)

BrianG 04.01.2011 03:40 PM

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:

j.f.s 04.01.2011 04:02 PM

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

slimthelineman 04.01.2011 04:54 PM

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

Overdriven 04.01.2011 06:51 PM

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

BIG-block 04.01.2011 07:50 PM

Quote:

Originally Posted by BrianG (Post 403181)
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:

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

suicideneil 04.01.2011 09:13 PM

Bets on the prices?

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

Aussie Nerd 04.01.2011 09:44 PM

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

Aussie Nerd 04.01.2011 09:53 PM

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

What's_nitro? 04.01.2011 10:17 PM

^ 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:

Aussie Nerd 04.01.2011 11:16 PM

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

What's_nitro? 04.01.2011 11:27 PM

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.

What's_nitro? 04.01.2011 11:35 PM

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...

himalaya 04.02.2011 01:04 AM

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?

BrianG 04.02.2011 11:48 AM

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

magman 04.02.2011 01:42 PM

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!

BrianG 04.02.2011 01:52 PM

According to Hitec, they said that most servos rate their torque at stall, whereas these are not. So those 600 oz-in servos may in reality be closer in performance to these 486 oz-in BL servos.

And about the reduced current draw: I think it's nice because a lesser BEC can be used. The people with BEC issues on a MMPro using regular servos probably won't even notice a glitch with these since they don't draw nearly as much.

Aussie Nerd 04.02.2011 11:47 PM

Quote:

Originally Posted by What's_nitro? (Post 403226)
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.

I already run my 7980s on 7.8v I believe and it makes a difference in both speed and power, I was hoping you could do the same to these. With a CCbec input voltage is requlated anyway. The only time power should vary is running a receiver pack which in my opinion should be a thing of the past.

BrianG if I had $150 just floating around I'd do some real world testing of the 7950 equivalent to the 7980, see how it compares. I can stall the later reasonably easily on the high grip rock I crawl on.

Kieren

kingdomracer 04.04.2011 11:40 PM

This sounds promising for my 4s MMP setup.
I like the idea of it staying at a constant V

slimthelineman 04.05.2011 01:52 AM

I just wish the cases were clear so I could see the little green monster motors inside doin their thing. Can't wait to see some prices and get some feedback.

Pdelcast 04.05.2011 12:28 PM

Quote:

Originally Posted by slimthelineman (Post 403492)
I just wish the cases were clear so I could see the little green monster motors inside doin their thing. Can't wait to see some prices and get some feedback.

It's actually a tiny little silver monster... :)

They do have hall sensors.

TexasSP 04.05.2011 01:32 PM

Damn, I need two of these now. The crawler guys will be thanking you Patrick!

Pdelcast 04.05.2011 02:50 PM

These really are AMAZING servos.

Arct1k 04.05.2011 04:38 PM

In need of beta testers? My super crawler needs some muscle. My 7980s are a bit weak lol

slimthelineman 04.05.2011 06:51 PM

Quote:

Originally Posted by Pdelcast (Post 403509)
It's actually a tiny little silver monster... :)

They do have hall sensors.

Does this mean the little silver monsters are the begining of a cc sensored motor line? That would be awesome!

What's_nitro? 04.05.2011 07:01 PM

Quote:

Originally Posted by slimthelineman (Post 403533)
Does this mean the little silver monsters are the begining of a cc sensored motor line? That would be awesome!

Might as well, right Pdelcast? :wink: :whistle:

cmac 07.22.2011 01:41 PM

Does anyone know if these are still coming out this month.

TexasSP 07.22.2011 07:09 PM

I hope so. Been holding off on new servos waiting for these.

cmac 07.22.2011 07:52 PM

I think this servo would be perfect for the truck I'm building. Hey what part of town are you in Texassp?

kingdomracer 07.22.2011 08:52 PM

They were mentioned in Buggy & Truggy mag Vol. 3
I've been holding out for these too and wouldn't mind them getting here soon.

TexasSP 07.23.2011 03:40 PM

Quote:

Originally Posted by cmac (Post 410050)
I think this servo would be perfect for the truck I'm building. Hey what part of town are you in Texassp?

North in the Tomball/Spring area.

cmac 07.23.2011 05:02 PM

I'm just south of the woodlands.

cmac 08.05.2011 01:33 PM

Guys I just emailed Hitec about these servos and I quote "they will be released in September and the Hitec HSB 9380th will retail around $200". I'll take two please:)

Swindez85 08.05.2011 02:37 PM

Ouch. I was thinking seriously about selling my 7955 and 7965 for one these when they came out but if they are going to hit the market at that price I think ill wait. I could almost buy two more 7955's at that price now.

Pdelcast 08.05.2011 02:41 PM

Quote:

Originally Posted by Swindez85 (Post 410460)
Ouch. I was thinking seriously about selling my 7955 and 7965 for one these when they came out but if they are going to hit the market at that price I think ill wait. I could almost buy two more 7955's at that price now.

Well, that's retail price. Retail on the 7955 is $179.95. So I would expect the new servo to be around $20-$25 more than a 7955.

I'm guessing of course. But if the brushless servo retail is $199.95, and the 7955 retail is $179.95 -- well, you can see where I got that. :)

Swindez85 08.06.2011 01:27 AM

Well if that is MSRP then I might just have a go at these then. With a coupon on Tower they should be very affordable.

kingdomracer 08.06.2011 01:38 AM

I'll be taking 4 of them, looking forward to these.
Like the poster before said, Tower's coupon will help.

cmac 08.06.2011 05:56 AM

Tower coupon??????

TexasSP 08.06.2011 12:06 PM

I will be buying several for sure.

Bad thing for you Patrick is that you will be selling less Ext BEC's in the future. :intello:

Of course with royalties off of the design of these who knows, it may just balance out huh........:rules: :yes: :lol:

kingdomracer 09.14.2011 12:59 AM

It's September

cmac 09.14.2011 11:47 AM

I saw on another forum that there is another delay with production. One of the servos might ne released at the end of this month, and the other two next month.


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