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Old Sep 15, 2013, 10:44 PM
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New Product
Inexpensive brushless servo

Just found this yesterday. Haven't tried them myself yet so I can't speak as to the reliability but this is the same company that makes the Pantera P6 and they are known for making good products.

http://www.audacitymodels.com/Produc...V/Default.aspx

http://www.audacitymodels.com/Produc...V/Default.aspx

They also have less expensive plastic/metal cased ferrite core and coreless versions of these.

The guy that runs Audacity said this about them over on Helifreak.

Quote:
Originally Posted by jbeech View Post
Gear sets? Yes, they're available for $20. My supplier is in Japan (bearings too) but as to who really hobs the tiny gears I dunno, not really, because I'm buying them from a specialist. Meanwhile, servo arms and plastic case components are injected by my supplier in South Korea (whom I know for a fact injects for outfits in Germany, as well as us in the USA, China, and probably many others too), the 6061-T6 aluminum pieces are USA, the electronics are a contract manufacturer in Taiwan (I think, but again, they're specialist so I don't really know), with assembly being a job shop in USA. Meanwhile, the jewel cases are from China (as are the foam insert), while the printed inserts are from the same guys (Canada) who print our DVD inserts for modelSPORT magazine (which, incidentally, we press in USA). Interestingly, the aluminum tags (the identifying label on the tops of the servo cases) are from Israel. Speaking of which, I have a good board quote from some other Israelis so that source may well be different shortly (and for anyone wondering why I was so busy in the weeks leading up the IRCHA, it wasn't just the Moby-project, but coordinating all this as I tried to get the servos ready - e.g. behind the scenes, it's not just fun and games and is far more involved than a simple re-label). Anyway, one thing I've learned with the servo project is there's really no one source for much of anything of significant complexity. For example, the servo electronics involve a TI reference design (USA), which is used by many in the hobby-servo business. Thus, all of these products are complex global efforts involving many unseen faces - including mine - because while I'm not really the guy making the servos, I have overall responsibility . . . and I answer to you.
So they are not relabeled servos nor are they made in china.
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Last edited by Atomic Skull; Sep 15, 2013 at 11:41 PM.
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Old Sep 15, 2013, 11:31 PM
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Hmm...the full metal cased one looks tempting at basically half the price of a comparable MKS model.
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Old Sep 15, 2013, 11:36 PM
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Quote:
Originally Posted by TheKingPhisher View Post
Hmm...the full metal cased one looks tempting at basically half the price of a comparable MKS model.
The coreless plastic/metal case version is $49, but for an extra $20 for brushless and a full aluminum case it really doesn't make sense to not just get the premium version.

The rudder servo only comes with the plastic/metal case, not full metal but then you probably don't need that for a rudder servo anyway. Would have been nice to have nice shiny full metal cases all around though.
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Old Sep 16, 2013, 10:14 PM
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I want to hear from the first Lab Rat how good they are and how they hold up on their pride and joy,,,,,,,,,,,,,,,,
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Old Sep 22, 2013, 06:23 AM
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Originally Posted by TURBOOMNI View Post
I want to hear from the first Lab Rat how good they are and how they hold up on their pride and joy,,,,,,,,,,,,,,,,
Yep. I'm on a tight budget, so it's very tempting. Do I really want to risk a 2K bird on a new servo company with no track record?
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Old Sep 22, 2013, 02:47 PM
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Originally Posted by distructor View Post
Yep. I'm on a tight budget, so it's very tempting. Do I really want to risk a 2K bird on a new servo company with no track record?
I wouldn't but sooner or later someone will and hopefully report back.
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Old Sep 22, 2013, 09:00 PM
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These are standard size servos, they don't need to be put on a $2K heli...

I may try them out on my Beam 600 actually...will probably go for the full metal cased one for cyclics since I already have a brushless MKS tail servo.
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Old Sep 22, 2013, 09:16 PM
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Quote:
Originally Posted by TheKingPhisher View Post
These are standard size servos, they don't need to be put on a $2K heli...

I may try them out on my Beam 600 actually...will probably go for the full metal cased one for cyclics since I already have a brushless MKS tail servo.
I told ya distructor ! Let us know how they work out for you King.
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Old Sep 22, 2013, 09:33 PM
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Quote:
Originally Posted by TheKingPhisher View Post
These are standard size servos, they don't need to be put on a $2K heli...

I may try them out on my Beam 600 actually...will probably go for the full metal cased one for cyclics since I already have a brushless MKS tail servo.
Please give a review!

I'm building an 800 so well stick with MKS or ProTec, but may try the tail brushless on my E640.
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Old Sep 27, 2013, 11:39 PM
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Quote:
Originally Posted by distructor View Post
Yep. I'm on a tight budget, so it's very tempting. Do I really want to risk a 2K bird on a new servo company with no track record?
Audacity isn't a new company they've been around for quite a while and they have a good track record for quality and reliability. This is their first line of in-house designed servos though. At least they are willing to tell us where everything is being made I don't think any other servo manufacturer would tell you that.

Also nothing in those servos is made in china which is always good. And I was surprised that they are assembled in the US. Confirms my suspicions that there is a lot of price gouging going in in servo prices.
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Last edited by Atomic Skull; Sep 28, 2013 at 12:01 AM.
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Old Sep 27, 2013, 11:54 PM
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(double post)
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Old Sep 28, 2013, 09:26 AM
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Quote:
Originally Posted by Atomic Skull View Post
Audacity isn't a new company they've been around for quite a while and they have a good track record for quality and reliability. This is their first line of in-house designed servos though. At least they are willing to tell us where everything is being made I don't think any other servo manufacturer would tell you that.

Also nothing in those servos is made in china which is always good. And I was surprised that they are assembled in the US. Confirms my suspicions that there is a lot of price gouging going in in servo prices.
Sorry, I did a bit more research on Audacity and yes from what I see they do have a good reputation. Its not like Futaba or JR that have been making servos for 20+ years. However given that it is Audacity, I will likely buy when I get to that point on this 800 project.
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Old Nov 29, 2013, 04:50 AM
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Someone on Flying Giants did a review on these.

http://www.flyinggiants.com/forums/s...4&postcount=41
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Old Nov 29, 2013, 03:54 PM
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Very good review.
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Old Dec 01, 2013, 12:21 PM
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These look like they might end up being a decent BL HV servo for the price. However, their specs are considerably lower than the MKS BL HV servos. The RJX HV servos I am currently using on my X7 have better specs with a coreless motor, and honestly are not much more expensive. But they are more expensive none the less. The price on these Pro Modeler servos is pretty good. But compared to other HV servos, they don't have the specs to keep them in the game unless all your looking for is something that works and is affordable. Under those conditions. The specs on my Gaui X5's stock servos are honestly very comparable and almost better @ 6v and they are considerably lighter per servo. I don't see BL motors being any better, especially in this case if it is going to yield lower specs and higher weight. I would definitely bet on the potentiometers going bad before a coreless motor, as is my experience. I personally put 700+ flights on my stock X5 servos before the pots went to hell and the servos were sloppy. Those servos almost have similar specs to these BL HV servos. So... How many more flights do people expect brushless servos to provide if the pots go bad first? At least these particular brushless servos don't cost any more than the Gaui servos do. But they do weigh a nice bit more. If the pots are better they might last forever. I wonder if replaceable pots will be next years thing?

Here are the specs of a few servos for comparison, starting with these Pro Modeler servos.


Pro Modeler PDRS74245BLHV:

Operating voltage: 5.5 - 8.4 V
Speed: 0.09 sec/60 @ 8.4v
Torque: 6.94563 kg-in (245 oz-in) @ 8.4v
Weight: 73.5g

MKS HBL880:

Operating Voltage:6.0 ~ 8.4 V
Speed: 0.032 s/60 @ 8.2v
Torque: 11.19 kg-cm (~394.7 oz-in) @ 8.2v
Weight: 73.2 g

MKS Servo HBL950

Operating Voltage: 4.0 ~ 7.2 V
Speed: 0.10 sec/60 @ 7.4v
Torque: 16.5 kg-cm (229.14 oz/in) @ 7.4v
Weight: 70.29 g (2.48 oz)

RJX FS0521HV:

Operating Voltage:6.0 ~ 8.4 V
Speed: 0.05 (sec/60) @8.4v
Torque: 21.3kg/cm (295.9oz/in) @8.4v
Weight: 68g

Gaui GS-501 (X5 stock LV servos. Made by SJPropo)
Operating Voltage: 4.8 - 6 V
Speed: 0.13/ 60 @ 6V
Torque: 9.5 kg/cm @ 6V
Weight: 52.5g

MKS were originally only sold by Hobbyking until people started endorsing them. Now they are considered one of the best and most expensive servos around. Which means that any other servo company could be just as good for half the price until they become popular, right?

I would rather buy these than the MKS HBL950. But those aren't exactly 8.4v HV servos. But the RJX servos have higher specs for only about $20 more per servo than these pro modeler servos. It's still a lot cheaper than MKS, and with really good specs. The big question for me, now that i need a new set of X5 servos. Is it worth getting HV servos just for slightly better specs? The X5 servos have worked great for me so far. Would these servos perform any better with only 0.03 faster speed and less torque? Wouldn't I want more torque on cyclic for better 3D performance? For that matter would the extra cost of the RJX servos be worth it for it's considerable increase in specs? Because as i said, the X5 servos have seemed to perform fine. Sometimes my X5 feels more connected than my X7 does with the RJX servos. So i really don't know. Another thing is, if i get HV servos instead of 6V servos, i need a new BEC or battery on board. So really I'm undecided.. But i keep going back to the Gaui servos. Since i really don't want to drop a small fortune getting my back up X5 flying again. On a smaller heli like the X5, i don't know if higher specs are going to make much difference?
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Last edited by IntegrityHndywrk; Dec 01, 2013 at 01:41 PM.
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