Arced Digital Servo - Updated on 15th Apr. 2008

[Arced]

Arced Digital Servo - Updated on 15th Apr. 2008

Small Difference Keeps the Competitive Edge

Push the limit, ARCED digital servos have got one more upgrade.

While enjoying the advantage of ARCED digital servos, some customers gave us their valuable feedbacks. One of the most desired features is larger operation angle.

Effective operation angle of ARCED digital servos has been improved from previous standard +-40 degrees to +-45-50 degrees*.

This feature will further boost the maneuverability of your 3D planes.

Faster and more responsive! Small difference keeps the competitive edge!

These upgraded servos are now available at our major distribution outlets.

*Extra operation angel set via transmitter

•D591 Micro Digital Servo Rev.3
ARCED D591 micro digital servo has been made even better. The come of Rev.3 has several major improvements shown below.
1. Much broader adaptable voltage range (DC 3-6V) *
2. Work flawlessly with various power supply systems from ESC/BEC, UBEC to NI-MH/NI-CD battery pack.
http://www.cngening.com/NewsView.Asp?id=18

• D531&D541 Series Digital Servos Rev.2
The innovative ARCED D531&D541 series nano digital servos have been made even better. The come of Rev.2 has several major improvement.
1. Much broader adaptable voltage range (DC 3-6V)*
2. Work flawlessly with various power supply systems from ESC/BEC,UBEC to NI-MH/NI-CD battery pack.
3. Servo torque has been improved from previous 0.45kg.cm (D531 Series) & 0.5kg.cm (D541 Series) to current 0.5kg.cm & 0.6kg.cm respectively.**
http://www.cngening.com/NewsView.Asp?id=17



Embrace The Digital Wonder - Arced Digital Servo

Micro planes are gaining great popularity during the past several years. 3D fixed-wing and heli flying demands precise maneuverability,fast speed and impressive sensitivity but general analog servo can not provide pleasing performance. This limits the further development of this market.

Researched and developed by experienced R/D team, Arced backs this trend with full range Micro&Nano digital servos at the end of 2007. Digital servos can deliver consistent and precise torque over the entire servo travel, giving you total confidence.

These servos are tailored for parkflyers, micro gliders and micro electric helicopters. Digital servos can also find their position in the field of industrial automation which needs accurate and high speed control.

Arced Hi-Speed Digital Servo provides extremely accurate neutral position.

High fidelity MCU and excellent algorithm make it works smoothly and keep high frequency noise minimized.

Arced Digital Servo adopts Frequency Conversion Technology TM which makes it remaining cool under wild and long time 3D flight and power consumption is rather low. And this advanced technology guarantees the durability of Arced Digital Servo.

Extremely narrow dead band (D591 ≤ 4μs & D531/D541 series ≤ 3μs) realizes industry leading sensitivity.

Fall safe feature (Lost Signal Protection) --- Arced Digital Servo holds its position and torque during occasional signal lost.

Full AVCS Gyro DS mode compliant

Light weight but perdurable structure will not interfere the 3D maneuverability of your helicopter.


Arced

Gening RC Tech Co.

cngening@gmail.com

[Arced]

Arced D591 test fly photos at our local heli club

Heli was piloted by HJ7489


SPEC
Torque: 1.3kg@ 4.8V
Speed: 0.09 sec/60 degrees @ 4.8V
Deadband Width:≤4μs
Dimensions: 22.3x21.9x11.4mm
Weight: 8.5g

[Arced]

Arced D541&D541BB

SPEC
Torque:0.5kg.cm@4.8V
Speed:0.09 sec/60 degrees@4.8V
Deadband Width:≤3μs
Dimensions:19.8x19.5x8mm
Weight:4.4g

D541BB comes with one metal ball bearing for even more smooth operation

[dave morris]

what dealers will be selling these in the U.S.?

[Arced]

Smallest Digital Servo in the world

Arced D531&D531BB

SPEC
Torque:0.45kg.cm@4.8V
Speed:0.09 sec/60 degrees@4.8V
Deadband Width:≤3μs
Dimensions:19.8x17.5x8mm
Weight:3.7g

D531BB comes with one metal ball bearing for even more smooth operation

[airmcn_3]

very cool, where do you buy them?

[c/f]

They've been @ united Hobbies for a couple of weeks $14.99 ea. I got the 3.7G and the 4.8g on order, what I'll be testing out mostly is how tough the geartrain is. You need 8+gram servos to start to get a decent set of gears. Futaba micros are great servos but their gear trains break easily.

There are many good performing servos but few with good gears along with them.

[Azarr]

Is the weight listed with or without lead wires and horns? If those items are include in the weight, a 3.7g digital with 15+ ounce inches of torque would be outstanding.

Azarr
www.ecubedrc.com

[village_idiot]

How light can we strip them down too?

[CurtissP40]

We have seen one of these recently. They all look good on paper, but when you compare apples to apples, you may want to consider them for very specific purposes only.

FWIW, a comparison with two other popular servos (after converting to English torque units) is attached.

The D591 would seem to be a reasonable substitute for the HS-55.

A very thin servo is often required for aileron control in a thin wing such as a Drela airfoil for use in a DLG. I have used Dymond D-47's in my DLG wings. Considering torque along with size, none of the Arced's appear to be a good substitute for the D-47's.

Clearly, there are other factors to consider, such as the digital design and price.

I for one, am taking a wait and see posture.

[flashprash65]

Anyone tried the591 yet. Looks fast

[FASTBEN]

i had ordered some micro dig servos from buybid and so far none out of 4 has worked properly they all jeeder and make every thing else go crazy esc will start the fan and shuts of the fan when these cheep servos are used.
ben

[flashprash65]

i had ordered some micro dig servos from buybid and so far none out of 4 has worked properly they all jeeder and make every thing else go crazy esc will start the fan and shuts of the fan when these cheep servos are used.
ben
I'm unclear about your post.... are we talking about the same servos as shown in the above pictures? Or is this some other brand name? Please clarify, thanks

[davecrash]

Just ordered 4 of the D591 from HC at 9.29 each. Is it good or bad that they include a spare set of gears ? really good price for a digital. I have 2 of the HXT900's on my Phase3 Fantom. It doesn't neutral well so this will be a nice place to try them.

[micromagic 31]

Do they work @6V ?

Regards
Jeroen

[Arced]

Do they work @6V ?

Regards
Jeroen

Currently Arced digital servo can work properly under standard 4.8V/5V

For those using BEC with 6V output you are recommended to add a voltage regulator (around 1.5USD) which reduces the voltage from 6V to about 5.3V

[c/f]

I got in the 3.7G BB and the 4.4G BB servos and boy are the gear trains smooth. I personally own 25 Diamond 4.7g servos and have yet to find a sub 5G servo with as smooth a gear train.

That is till now with these ARCEd digital wonders. ( I also noticed that the gear train has almost 180deg travel static like a retract servo, WEIRD????) Theres even a bearing in them, the output spline shaft is large enough to cross drill for round carbon arm in place of plastic ones. (something I've never been able to do with D4.7) Not sure if United Hobbies is truthfull on weights given this THread, UH does not offer non bearinged ones.

The ARE smooth AND center excellant as evidanced by full flying stab on indoor 3D foamie.

Now they muust stand the test of time, but I've already ordered more..............

The bar has been raised. .02

[micromagic 31]

The D591 servo's I have arn't working properly.
I've hooked them up on my receiver with a fresh batterypack and they are doing nothing, other servo's are working properly

It's a normal 4 cell AA battery pack. the voltage off the pack was 5,63 volt when it came off the charger. When i hooked up a single lipo cell with a voltage off 3,96 volt the servo's are working properly.

Am I doing something wrong or do I have to wait till the voltage of the 4 cell pack drops to a voltage below 5,3 volt? (2 ours later the voltage is 5,53 volt and the servo's still don't do anything.)

I hope you can help me.

Regards
Jeroen

[U.S.U.L]

Just received d531, jittres even on 4.7V, works great on 3.7V but then it is completely useless..
I'm using Spektrum DX7 with ar6100rx.

Arced could You please explain it to us?

[Arced]

The D591 servo's I have arn't working properly.
I've hooked them up on my receiver with a fresh batterypack and they are doing nothing, other servo's are working properly

It's a normal 4 cell AA battery pack. the voltage off the pack was 5,63 volt when it came off the charger. When i hooked up a single lipo cell with a voltage off 3,96 volt the servo's are working properly.

Am I doing something wrong or do I have to wait till the voltage of the 4 cell pack drops to a voltage below 5,3 volt? (2 ours later the voltage is 5,53 volt and the servo's still don't do anything.)

I hope you can help me.

Regards
Jeroen

Thanks for choosing ARCED prodcuts.

Direct link between RX and batt pack may cause this problem. Certain NI-MH batts have irregular output spectrum. You may try link through a 5V BEC

[Arced]

Just received d531, jittres even on 4.7V, works great on 3.7V but then it is completely useless..
I'm using Spektrum DX7 with ar6100rx.

Arced could You please explain it to us?

Hello U.S.U.L

Thanks for choosing ARCED prodcuts.

During our engineering test. We tested Spektrum DX7 with ar6100rx configration which works flawless. Please check your power supply system. Battery used, ESC/BEC used...

You may also contact us via email cngening@gmail.com

GEN

[Sagittarius]

Nice servo

[Arced]

1st Feb. 2008

The innovative ARCED D531&D541 series nano digital servos have been made even better. The come of Rev.2 has several major improvement.

1. Much broader adaptable voltage range (DC 3-6V)*

2. Work flawlessly with various power supply systems from ESC/BEC,UBEC to NI-MH/NI-CD battery pack.

3. Servo torque has been improved from previous 0.45kg.cm (D531 Series) & 0.5kg.cm (D541 Series) to current 0.5kg.cm & 0.6kg.cm respectively.**

Note:

* D531&D541 series nano digital servos are not recommended for long time operation at 6V. This may damage the micro coreless motor permanently.

** The torque listed above is "DYNAMIC" torque which is different from the "STALL" torque promoted by most manufacturers. "DYNAMIC" torque is the force that can actually move the control surface not just holding the position. The stall torque of ARCED D531 and D541 series will be easily over 1.2kg.cm.

*** There is a number “2” mark on the box for easy identification.

http://www.cngening.com/NewsView.Asp?id=17

[Arced]

1st Feb. 2008

ARCED D591 micro digital servo has been made even better. The come of Rev.3 has several major improvements shown below.

1. Much broader adaptable voltage range (DC 3-6V) *

2. Work flawlessly with various power supply systems from ESC/BEC, UBEC to NI-MH/NI-CD battery pack.


Note:

* D591 micro digital servo is not recommended for LONG time operation at 6V.

** There is a number “3” mark on the box for easy identification.

http://www.cngening.com/NewsView.Asp?id=18

[shadowless]

Hi Arced,

where do you get the replacement gears for the D591?

Thanks

Wei

[U.S.U.L]

Arced do You have any detailed specs for servos? I'm interested in idle/running/stall current draw especially for D531.

My faulty D531 was replaced by new v2 version, i will test it as soon as it arrive.

[Arced]

Arced do You have any detailed specs for servos? I'm interested in idle/running/stall current draw especially for D531.

Thanks for your keen interest in our products

Full specs of ARCED digital servos will be released on our website soon.

http://www.cngening.com/

Gening RC Tech Co.Ltd.

[U.S.U.L]

I really need to know current draw characteristics for D531, its urgent:)

[U.S.U.L]

Full specs of ARCED digital servos will be released on our website soon.

http://www.cngening.com/

Gening RC Tech Co.Ltd.Any updates?

[Arced]

Please check our website for extended info.

ARCED D531 Rev.2 SPEC:
http://www.cngening.com/ProductsView.Asp?id=37

ARCED D541 Rev.2 SPEC:
http://www.cngening.com/ProductsView.Asp?id=36

ARCED D531BB (Metal Ball Bearing Version) Rev.2 SPEC:
http://www.cngening.com/ProductsView.Asp?id=35

ARCED D541BB (Metal Ball Bearing Version) Rev.2 SPEC:
http://www.cngening.com/ProductsView.Asp?id=34

ARCED D591 Micro Digital Servo SPEC:
http://www.cngening.com/ProductsView.Asp?id=33

Regards

Gen

[Arced]

Small Difference Keeps the Competitive Edge 2008-4-15

Push the limit, ARCED digital servos have got one more upgrade.

While enjoying the advantage of ARCED digital servos, some customers gave us their valuable feedbacks. One of the most desired features is larger operation angle.

Effective operation angle of ARCED digital servos has been improved from previous +-40 degrees to +-45-50 degrees.

This feature will further boost the maneuverability of your 3D planes. Faster and more responsive!

These upgraded servos are now available at our major distribution outlets.

ARCED

Gening RC Tech Co.Ltd.

http://www.cngening.com/

[trotsky71]

Hi,

I recently set-up the Arced D591 digital servo for my T-Rex 450 tail rudder. Been setting up the CCPM on the T-rex and the tail servo has been responding correctly. However, this morning when I powered the heli, the servo arm moved 360 degrees !!!! Never seen a servo do that before. Any explanation for this? My TX / Receiver is a Futable 6EX and gyro is an Align HH. It seemed to work OK after cutting power and trying again though.

[Arced]

Sometimes outside RF interference may cause your radio's malfunction.

Just change operation angle or turn on your radio at another time, the problem will disappear