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Old Jul 11, 2005, 09:31 AM
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HDS-877 Digital tail servo 10g

I recently was advised from the tech support people at CSM that ashtekelectronics would be selling the HDS-877 digital servo from Hobby Electronics. The specs would indicate that this servo is superior to the multiplex that others have been using (weight and speed).

Does anyone have any experience with this particular servo. It looks like it should work pretty well.

Mike







1. Type of Gear Plastic gear
2. Motor type Ferrite brush motor
3. Operating Voltage 4.8 V ~ 6 V
4. Neutral pulse 1.5 ㎳
5. Travel angle 40 ~ 45°at +/-400 ㎲
6. Dead Band 1 ~ 2 ㎲ (Adjustable)
7. Speed 0.11 (sec/60° at 4.8V)
8. Torque 1.2 (kg/cm at 4.8V) 16oz
9.Weight (g) 10g
10.Dimensions (mm) 21.8x11x19.8
11. Ball bearing
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Last edited by evolekim; Jul 11, 2005 at 01:17 PM.
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Old Jul 11, 2005, 11:36 AM
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Unless they will be offering spares, like gear sets, the specs don't matter. I have both the Multiplex Polo Digi 4 and the Saturn 6gram digital servos and even though the specs are better on the Saturn, there are no spares available.
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Last edited by Hoverup; Jul 11, 2005 at 12:42 PM.
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Old Jul 11, 2005, 12:29 PM
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I would agree the a servo has limited appeal without spare gears but it appears that they are offering replacement gears in both nylon and metal http://hobbyelectronics.co.kr/bbs/vi...689cae5d426c82

At least a parts number is promising.

Mike
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Old Jul 11, 2005, 12:44 PM
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That's good news. Now all we need is a US outlet. Balsaproducts is discontinuing carrying the Hobby Electronics line of servos and don't have the HDS-877 at all. Any other outlets?
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Old Jul 11, 2005, 12:56 PM
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here is a US store that shows out of stock http://www.alpexhobby.com/shop/produ...Digital+Servos

and then there is the UK store http://ashtekelectronics.com/store/index.php that ships fast at a fair price from my experience.

Mike
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Old Jul 11, 2005, 01:05 PM
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Thanks Mike. Google showed me the same shops plus some overpriced shops in Germany.
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Old Jul 11, 2005, 01:26 PM
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Quote:
Originally Posted by evolekim
here is a US store that shows out of stock http://www.alpexhobby.com/shop/produ...Digital+Servos

and then there is the UK store http://ashtekelectronics.com/store/index.php that ships fast at a fair price from my experience.

Mike
Can't find these servos at the UK shoppe. Did you see them there?
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Old Jul 11, 2005, 01:30 PM
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The Tech support at CSM said ashtekelectronics.com would have them soon. I have emailed the store to get a date and will post some more info when I get it. I am getting a sample from CSM hopefully by the end of the week
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Old Jul 11, 2005, 01:32 PM
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Hi Chaps,

I hoping to get them in at the end of the month. I'm hoping to support these servos will full spares in the near future as well.

Also there's a 18g version which i'm dying to see the results on a x400.

Cheers,

ash.
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Old Jul 11, 2005, 01:44 PM
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Thanks for the post and the quick reply to my e-mail inquiry Ash.
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Old Jul 11, 2005, 01:52 PM
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Ash,

Any ideas on what they will be selling for?

Mike
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Old Jul 11, 2005, 01:56 PM
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No Worries mate

Is alexhobby closing down? Their entrie stock seems to be hobby elect stuff?

any way the full specs on these servos are as follows:

HDS-877
Type of Gear: plastic/metal gear Plastic gear
Motor type: Ferrite brush motor
Operating Voltage: 4.8 V ~ 6.0 V
Neutral pulse: 1.5 ㎳(Adjustabla)
Travel angle: 40~45° at ±400㎲(Adjuastable)
Dead Band: 1 ~ 2 ㎲ (Adjustable)
Speed (sec/60°at 4.8V): 0.11
(sec/60°at 6.0V): 0.09
Torque (kg/cm at 4.8V): 1.2
(kg/cm at 6.0V): 1.5
Weight (g): 10
Dimensions (mm): 22x11x20
Price: 24.99GBP approx 44.98USD

HDS-577
Type of Gear: plastic/metal gear Plastic gear
Motor type: Ferrite brush motor
Operating Voltage: 4.8 V ~ 6.0 V
Neutral pulse: 1.5 ㎳(Adjustabla)
Travel angle: 40~45° at ±400㎲(Adjuastable)
Dead Band: 1 ~ 2 ㎲ (Adjustable)
Speed (sec/60°at 4.8V): 0.12
(sec/60°at 6.0V): 0.10
Torque (kg/cm at 4.8V): 3.0
(kg/cm at 6.0V): 3.3
Weight (g) : 18
Dimensions (mm): 28x13x28
Price = 29.99GBP aprrox 53.98USD

Where 1GBP == 1.8USD
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Old Jul 11, 2005, 05:53 PM
How high does it go?..duh
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Sounds good to me, see you at the end of the month
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Old Aug 23, 2005, 01:32 PM
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gear sets just in and the accessories pack also.
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Old Aug 23, 2005, 02:21 PM
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Thanks for the heads up. Order on the way.
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