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07-28-2011, 11:56 AM
| #1 | ||||||||||
| Rock Stacker Join Date: Dec 2010 Location: Toronto
Posts: 76
|  Is this servo TOO fast?
I want to use the most powerful servo I have to Steer my AX10. It's a JR DS8717, made for helicopters. Is it too fast for a crawler? My next option is a Towerpro MG996R. DS8717 Ultra Speed Cyclic Servo Specs
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07-28-2011, 12:03 PM
| #2 |
| 20K Club   Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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No such thing as too fast. It will work fine, make sure you are running a BEC though.
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07-28-2011, 12:44 PM
| #3 |
| Rock Crawler  Join Date: Jul 2007 Location: E LEE, NV
Posts: 589
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Like harley said no such thing as too fast and that servo will work just fine, but if your looking for the "most powerfull" you might want to look into something with more torque
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07-28-2011, 12:47 PM
| #4 |
| RCC Addict Join Date: Jun 2006 Location: Maryland
Posts: 1,255
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There might not be such a thing as too fast, but there is such a thing as not enough torque. 160 oz of TQ isnt enough for a 2.2 crawler IMO. it might be enough for a 1.9, but the more torque you have the happier you will be. EDIT: Squish beat me to it. |
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07-28-2011, 12:58 PM
| #5 |
| 20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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He said most powerful one he HAS. I would suggest more torque as well but sometime you play with what you have. I am guessing that servo won't last long though. Helicopter servos don't see nearly the beating we put on things. |
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07-28-2011, 01:09 PM
| #6 |
| Quarry Creeper Join Date: Dec 2009 Location: Honolulu
Posts: 428
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I agree, use what you got. If you want to buy one, more torque is better. I'm about to try a Savox SC-1268SG, Been told it's strong, 340+ torque. Got it on ebay for a decent price + free shipping. I was thinking maybe a boat servo would be strong because of water resistance. I'm guessing. |
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07-28-2011, 01:12 PM
| #7 |
| owner, Holmes Hobbies LLC  Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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I love fast servos. Makes twitching the tires easy.
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07-28-2011, 01:26 PM
| #8 | |
| 20K Club Join Date: Jul 2004 Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
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07-28-2011, 02:59 PM
| #9 |
| Rock Stacker Join Date: Dec 2010 Location: Toronto
Posts: 76
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Glad to hear the speed is not an issue (I was worried "too quick" would just make very minute movements difficult.). Yes, unfortunately it's the best I have. However I see them sell for decent coin, so maybe I can find someone to trade that has a more powerful one, but less speed. |
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07-28-2011, 08:00 PM
| #10 |
| Quarry Creeper Join Date: Dec 2009 Location: Honolulu
Posts: 428
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I just installed my Savox SC-1268SG servo, man, is it quick. Gonna try it out this weekend and can post a small review if you like.
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07-29-2011, 08:38 AM
| #11 | |
| Rock Stacker Join Date: Dec 2010 Location: Toronto
Posts: 76
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If I can't trade mine I'll try it in my scx10 (1.9) and get something better for the ax10. They're both only used for bashing. | |
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07-29-2011, 09:14 AM
| #12 |
| Rock Crawler Join Date: Nov 2010 Location: Springfield, Oregon
Posts: 527
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No such thing as to fast at all. It's the torque I'd be more worried about. For 1/10 I'd want bare absolute minimum of 300oz of torque.
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07-29-2011, 09:53 AM
| #13 |
| I wanna be Dave Join Date: Aug 2004 Location: central VT
Posts: 2,300
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In a crawler application a fast servo with too little torque will actually be slower than a higher torque servo that is rated at a slower speed, and will likely draw more amperage. Running a Hitec 7954SH in my AX-10 and it has plenty of torque and speed, and at $80 on Ebay it seems to be the best bang for the buck so far. I too would be interested in a review of the high torque Savox servo. Running a 1258 in my Blitz and it has plenty of torque in that application with blinding fast speed. If the servo seems too fast, just move your steering wheel slower. I had to learn to tame down my steering inputs after going from a Hitec 645 to the 7954. |
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Linear Mode
