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Old 04-19-2006, 02:31 PM   #16
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Get the 9550, you know you want too!
Seriously, it is a godd bit of kit and allows you more space to fit the rest of your electrics.
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Old 04-20-2006, 01:06 AM   #17
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Do you hear that?.... That's the sound of inevitability.....

I will place an order on tower tonight.... unless i find an European shop with good prices....

cheers and thanks to all!
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Old 04-20-2006, 06:48 AM   #18
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Is the S9550 Metal geared? Forgive me but what is the diff between a digital and a high speed/ torque servo?
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Old 04-20-2006, 07:28 AM   #19
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Quote:
Originally Posted by seaball
not sure what rampal needs it for, but that cheap one, just posted, is not fast enough to be desirable for on-road. .12sec or lower i would say. the hitec is questionable for on-road as well for the same reason. then again, for $25, it might be worth it to try one.

long story short - $80 is pretty economical for a digital race servo. add to that the durability/accuracy of futaba, and the fact that it's low profile, and surely this a big winner. some may complain that .11sec is too slow (9550). but futaba does not make one faster than .10, and they have won plenty of on-road races, including the novak, the snowbirds, and the nationals (lemieux and dayger) all in the last three months.

the choice is yours.
You forgot to mention the 1/10th scale worlds in 2002 with Surikarn driving.
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Old 04-20-2006, 08:05 AM   #20
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Quote:
Originally Posted by Chancellor6630
Is the S9550 Metal geared? Forgive me but what is the diff between a digital and a high speed/ torque servo?
the two are unrelated.

digital vs. analog refers to the type of signal processing.

high speed/torque is a way to qualify the mechanical output of the servo.
- torque meaning that the servo movement is strong and will turn heavy loads.
- speed meaning that the servo movement is fast and will turn quickly.

the attached is a good read.
Attached Files
File Type: pdf digitalservos.pdf (244.1 KB, 101 views)
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Old 04-20-2006, 08:40 AM   #21
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Gee thx man... that really helped me alot. once thought that
digital servos = Metal gears...
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Old 04-20-2006, 01:14 PM   #22
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I still have an ol' Airtronics analog. 'Twas high speed, high torque, fastest one they made as of like 8 years ago. Can anyone elaborate on the difference in performance between high end analog and digital servos and how that difference bears out in driving "feel" on the track?
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Old 04-20-2006, 01:26 PM   #23
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Quote:
Originally Posted by rampal
Hi:
I've seen that many of you use the futaba s9550 as steering servo. I was looking for a low-profile servo, but not digital. Has anyone use a low-profile servo besides the mentioned previously? Are they cheaper? or should I save and buy the s9550?

cheers,
IMHO, I have had my Futaba for three years in one of my on-road cars, never a bit of problem and I do not run a servo saver. In those three years I have run other high-end full size digital servos in my other on-road cars, also with great success, but the cost of those were significantly higher. I have also run the Hitec lower-end digital servo in my on-road cars and broke it in less than three weeks. In Hitec's defense, the servor was 1/2 the price of the Futaba, and 1/3 the price of my other high-end servos. Hitec also immediatly fixed the servo for me, no problems, great customer service. Bottom line you get what you pay for. I have gone both routes and have found for servos it is better to buy quality once vs dealing with missing race time and adding repair time. Get the Futaba, great quality, great price.
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Old 04-26-2006, 09:30 AM   #24
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so i should have no problems running the futaba in my jr rs310 receiver? i read the fact file .pdf posted earlier and saw no mention of backwards compatibility. just wanted to make sure it would work before purchasing. thanks.
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Old 04-26-2006, 10:26 AM   #25
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Quote:
Originally Posted by tr1kstanc3
so i should have no problems running the futaba in my jr rs310 receiver? i read the fact file .pdf posted earlier and saw no mention of backwards compatibility. just wanted to make sure it would work before purchasing. thanks.

No, you won't. The only thing you will probably need is to cut the small ditch the Futaba connectors have. Other thing you might consider is if your receiver has a BEC circuit and how many volts and amperes it delivers.... I have the JR RS300 and it has a 4.8v bec... not nice if you want to release all the fury of your servo!!! but I think RS310 does not have it....
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Old 04-26-2006, 11:48 AM   #26
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The receiver gets it's power from the speedo. There is no BEC on the rx itself. If your ESC has a 6v BEC, then the servo will get 6v. Has nothing to do with the rx. If your ESC only has a 4.8 or 5v BEC, you can make one that runs at 6v with 1 or 2 transistors from Radio Shack. There's a thread on here somewhere with the part numbers and a wiring diagram. It's a simple project that would take all of about 5 minutes to assemble and will make any servo run at it's full potential.

Tony
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