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Audacity Audacity Pantera Helicopters Support


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Old 08-08-2013, 05:20 PM   #1
geomecc
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Default audacity servos

anyone know what the status is with them? my nexus servos are due to be changed especially the tail servo
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Old 08-09-2013, 12:16 AM   #2
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I'm working on the website stuff for these ProModeler servos right now. We have four servos, which are suitable for cyclic duty plus two servo expressly designed for tail rotor duty - all are in stock.

For cyclic/collective we follow the tried and true business plan of offering servos at good, better, and best price points. Thus, folks with a tight budget can get a good 140oz-in digital servo (with metal gears), which is strong and fast enough for a flybarless 700-class bird. We also offer a coreless version of this same servo, which outputs a little more power at 215oz-in of torque. Basically, it's the same servo but with a more expensive motor. In addition, we offer two brushless servos. While one of our brushless servo serves up a stout 245oz-in of torque, the other is a genuine monster because it puts out 520oz-in of torque. Quite frankly, this is actually strong enough to handle the rudder duty of a giant scale 3D-airplane, but because it's fast enough for the cyclic/collective pitch duty of a helicopter, we're pretty sure some folks will use them with their helis. My thinking behind these, however, was for those modelers building turbine powered models, which easily go 30 pounds, or more and needed servos not just strong enough, but fast enough too. Anyway, these are rediculously strong servos, which will perfectly fill this niche in the market.

Meanwhile, our two tail rotor servos include one with a coreless motor at 110oz-in of torque and a brushless version of the same servo, which offers 120oz-in of torque. Note, however, both are 560Hz/760us instead of the more common 333Hz/1520us design. Thus, make sure your gyro supports very high frame rate tail rotor servos (and yes, we have one that does).

Finally, all of these servos (and the gyro) are HV units, e.g. designed expressly for modelers with the desire to ditch nickel chemistry battery packs completely. They idea is to use an unregulated 2S LiPo pack, thus eliminating the potential failure point (and additional expense, to say nothing of complication), which results from adding a regulator to your model. Plus, they all (including our budget servo) feature titanium output gears, and o-rings for sealing.

Anyway, I should have the product listings and photos online soon, maybe by this time tomorrow.
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Old 08-16-2013, 06:17 PM   #3
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what are the prices?
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Old 08-24-2013, 10:46 AM   #4
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These are our best value servos.

PDRS74140DLHV: http://www.audacitymodels.com/Produc...V/Default.aspx

Do we offer higher performance servos? Yes, and they comes at a higher price due to the increased cost of some of the components. If you need the higher performance, then these aren't for you. But don't be too quick to judge without checking them out because despite being budget friendly, we didn't scrimp on quality, or save a few pennies by leaving out important features. They're powerful enough for a flybarless 700-class model, and come with the same geartrain and million-cycle potentiometers as our top-of-the-range models. Plus, they're water, fuel, and exhaust-resistant because we designed them with o-rings.

They're perfect for modelers realistic about their requirements while not compromising on what's important.
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Old 08-24-2013, 01:55 PM   #5
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Extremely good price. Looking forward for the rest of the servos.

Does it support regulated 8.4volts regulated? Using hv2bec so I get almost no voltage drops :-)

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Old 08-24-2013, 02:01 PM   #6
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Yes, constant 8.4VDC is no problem, but I question the basic premise. Why risk a decrease in avionics reliability by adding another component? Especially since this critical failure path is unnecessary because performance is outstanding on an unregulated LiPo pack and the discharge curve is relatively flat. Always remember KISS - keep is simple silly.
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Old 08-24-2013, 02:59 PM   #7
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ok ill take 3 and I need a tail servo
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Old 08-24-2013, 03:59 PM   #8
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Those three, the narrow-band coreless tail rotor servo, plus the other bits have been packed for shipping on Monday. Thanks for your business.
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Old 08-25-2013, 03:05 AM   #9
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Default Re: audacity servos

Quote:
Originally Posted by jbeech View Post
Yes, constant 8.4VDC is no problem, but I question the basic premise. Why risk a decrease in avionics reliability by adding another component? Especially since this critical failure path is unnecessary because performance is outstanding on an unregulated LiPo pack and the discharge curve is relatively flat. Always remember KISS - keep is simple silly.
I have stupid habit of forgetting to either charge the rx pack and/or bring it at all :-)

And I am infact feeling a difference in flying with an real bec and an rx pack. Atleast og large models with power hungry servos. But it could be a psychological thing ;-)

Btw got the screws yesterday. Will see if I can mount it next week :-)

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Old 08-25-2013, 07:27 AM   #10
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Psychological - no question.

Anyway, that's one of the beauties of running a straight 2S LiPo, you can hit them with the same charger you already have for the motor packs. Also, you should treat them the same, e.g. place them at a storage charge (50%) for greatest life. My practice is to charge them when I charge my flight packs, and for nitro models, I charge them either before I leave, or on the way because a 2A pack charges very, very quickly. Good engineering practice eliminates complexity for greatest reliability - ditch the regulator and just top up the flight pack at 7.4V.

The AUD2025AH have already arrived? Wow, that's about the same service experienced by someone in the USA. While I knew we were good, I had no idea we were that good. Keep us posted, but not within this thread, please.
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Old 09-15-2013, 01:44 AM   #11
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Are replacement gears available for these?

Are these made in Korea like the Nexus servos?
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Old 09-15-2013, 08:53 AM   #12
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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.
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Last edited by jbeech; 09-15-2013 at 09:27 AM.. Reason: spelling
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Old 09-21-2013, 12:34 AM   #13
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long shot question JB....Any chance a spline from your new servos will fit the nexus servos? i am in need of a plastic spline for a Hatz nexus servo.
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Old 09-21-2013, 09:58 AM   #14
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Quite different, sorry.
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Old 10-03-2013, 04:53 PM   #15
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Any one run these servos and have reviews?
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Old 10-04-2013, 07:19 AM   #16
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Default Re: audacity servos

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Originally Posted by jake21 View Post
Any one run these servos and have reviews?
I bought a brushless set thinking that if I didn't like them I could risk them on my E640. When I got them on the bench test I was so impressed that I've put them on my Epic MD8 800 class machine. I've still not maidened it but can't wait.

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Old 10-04-2013, 08:22 AM   #17
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We've have begun preliminary design work on 500-class servos - HV and brushless.
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Old 10-17-2013, 01:21 AM   #18
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Hey JB some of my heli gear predates the FBL invasion but its still giving me good service...Specifically my CSM 560SL gyros. I would like to try your tail servos but I think the frequency is too fast for older gyros... I dont understand all of these specs but from the CSM web site:

Servo choice: These gyros make the most of either a digital/super or a standard servo, since you can select Super Servo support during Quick-Setup.. Warning: Use of the Super Servo facility with servos not designed to accept their high frame rate may result in damage to a standard servo and will cause malfunction in flight. The Quick-Setup routine runs the servo in standard mode so it is always possible to access this routine with a standard servo in order to turn off the Super Servo facility.
For optimum performance, we recommend a high speed Super Servo or Digital Servo (0.1 seconds/60 degrees or less), . The gyro will run with any digital servo using standard (1520ms) pulsewidths. These servos will be run at 250 frames per second. Please note - servos with 760ms pulse width (eg Futaba S9251,S9256, BLS251, Logitech 6100T, Hitec 5083MG), cannot be used (but can with our SL720 gyro).
With a standard servo, set to Super Servo OFF, these gyros will work with any servo but we recommend a speed of 0.12 sec/60 deg. or better for best performance. These servos will be run at 70 frames per second.

Will your servos work with older gyros till i can update my gear? i also have Futaba 401 gyros. thanks for any help.
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Old 10-17-2013, 07:32 AM   #19
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Sorry but these are 760µs/560Hz servos (and specifically disallowed in that note).

Basically, I had to draw the line somewhere because I could afford to make two tail rotor servos, but not two versions of each. Thus, I decided high frequency coreless and brushless tail rotor servo would best carry our flag into battle.

I would, however, be remiss if I didn't observe our G74720MHV gyro accepts the latest digital servos 'and' older generation digital (and even analog) servos. This is quite a high performance tail rotor gyro encased in aluminum, which has been CNCed from a solid billet of 6061-T6 resulting in it being nearly indestructible (and is quite reasonably priced). Add to it, this is a HV unit, which means you don't need a separate voltage regulator, so you save a little money too.

G74720MHV: http://www.audacitymodels.com/Produc...V/Default.aspx

Some have asked me privately why we bothered making a gyro and all I can say is I still have demand for a tail gyro from those who aren't interested in moving to FBL.

Thanks for asking.
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Old 10-17-2013, 09:12 AM   #20
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Thanks JB!
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