Crawler Canyon Presents: Servo Testin' Time, Savox SB-2290SG Monster Torque
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- čas přidán 6. 09. 2024
- Running the gauntlet today,
The Savox Sb-2290SG Monster Torque, rated for 6.0-8.4V use. The servo is tested at the mfr. specified voltages of 6.0, 7.4, and 8.4 volts.
The "New Canyon Protocol" tests servos piped through a Hobbywing 1080G2, which is running off of a regulated power supply. This will (I hope) provide as close is as practical to real-world stall torque numbers.
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Links
2290SG amzn.to/3sncvgu
IG: crawlercanyon
Real wonderful and most informative. Wish you could run these tests on more Savox models.
They're just so, SO loud that Savox don't make it to the bench very often. They're great, and I've never had a single problem with any Savox servo I've ever owned, but in a rock crawler, they simply won't do.
I love the servo tests!! Waiting on you to test the Redcat servo if you haven't already! Their "torque spec" servo that came on the Ascent! Keep up the good videos!
Digging the updated servo test bench. Real world numbers!
I have that servo lying around somewhere. It came in a 1/8th scale trail rig I bought from someone that weights about 13lb. I don't think it's waterproof, and it's loud. This one needs to be used on a comp rig that was built about 6 years ago with a super loud revolver and it'd be right at home.
😅😅
That’s all I’ve been running lately is the flash hobby’s…. IMO best servo for the money.
I’ve been most surprised by the Flash Hobby RX-powered line, which are super quiet, smooth, and even cheaper than the direct-power models. I can’t complain about 50kg for under 50 bucks.
I love this place you guys rock 🪨🗻🗻🪨
You need a bigger BEC. The 2290 has a stall current of 10 amps. The BEC is limiting the power generated.
“BEC not required but recommended for peak performance.” 700oz is more than enough for even an eighth scale application, AFAIC.
Plus, if we’re adding a $30 BEC to the price point of the 2290, I’d classify it as a hard pass. Great numbers, but not $180+ numbers. I can buy three 700oz servos for that.
I bet if you had a MambaX or any ESC with a 8 amp or better BEC capacity, the readings at 8.4 volts would have been better. That is all I am saying. Besides, with all electronic devices you need to calculate the RMS values for power consumption. Not the advertised peak values.
@@E.H.O Flash Hobby M60BHW. Makes just over 800oz. amzn.to/3uUpUxF. I have five or six of them. There's also an RX powered version, but it's a tiny bit slower. amzn.to/48BoqX5
@@E.H.O Well, don't tell that to my Kraton. Or my Senton 6S. And if we want to dish out some pedantry, when I made that comment, I was paying $57 for the 60kg. Welcome to the future.
Thanks for the info. Maybe savox will work well on the xmaxx since it can do well on low voltage albeit need to adapt it
Love the test rig a shame that thing is so noisy/expensive it made good #s thanks for your time and effort.
Susan!!!
Australia watching. I use Savox because we don’t have a lot of choice in my town. They are not as expensive down under ( I believe) Plus the likes of a home’s hobbies is very very expensive if you can find or import one.
Just stumbled across this awesome channel a couple weeks ago and loving it! Be interesting to see if you get different results from a different esc also. I’d like to build one of these to mess with for something to do.
I've got the SW-2290SG in my TRX-4. I hate it, haven't got around to changing it, but truth to tell, I hardly drive it atm so maybe a job for next spring. The reason I hate it?.. it's so noisy, constantly trying to recenter itself even when the car is stock still.. drives me nuts.. no other servo I've had is so consistently "chatty"
Savox have been noisy for as long as I can remember. I bought an MKS HBL550 for my first TRX-4, and it’s very nearly as loud. Great for go-fast, where we can’t hear the servo anyway.
I raised my hand but not so sure you could see that. ;)
😂😂
I raised my hand! Did you see me raise my hand. LOL😂
My first servo upgrade was to a savox. I hate the noise, I’m not saying that it doesn’t do the job but others don’t shout about it. Will not buy another.
Running a lot of 9imods, just wish they had the 70kg ones on amazon even though ebay is cheaper.
Savox devotee here. Why? Same reason as Injora vs Element. One did the work. The other is riding the shoulders of giants.
bench supply is 10amp ? numbers and percentage change are off, huge loss of output compared to rated bec output i would guess at the 8.4 testing. 7.4 to 8.4 is 14% increase but only saw basically .1amp more draw and 3kg change. more that the 1080 is a 4amp 7.4v bec, or 8.4v with a servo pulling max stall of 3amps maybe. SO kind of proving 1080 bec is limiting servos in a round about way. think the bench powersupply will need to run high torque servos, similar in a way as a CCbec or similar
running the numbers in the test 1080 bec is giving 30 watts at 7.4, only 35 watts at 8.4 (if maintained the set voltage during test) roughly makes it 4.7 amp capable at 7.4 using 35 watts, or 4.2 amp at 8.4.
while no servos test out perfectly linear, rough % would approximately be 1010oz uncorrected, full voltage & full amp
So do you want to see the numbers you’re actually going to get in the field, or basically useless “look how big these numbers are!” kind of results?
And as I said in another comment, $150 for a servo plus $30 for a BEC, when there are direct power servos making the same numbers (or better) for half the money (or less.)
@@CrawlerCanyon 2 fold and multiple conundrums. I understand the testing setup like this, it was more of a servo with specific esc/bec. It showed a bottle neck and curious if it shows up in other tests. Leads way to testing esc/bec actual output rather then going by the factory rating. Does not give a servo a chance to make full rated numbers though as well in testing. Agree on better/half money direct power, but are you worried about $30 if you are spending $150 on a servo ? and i would guess less likely to run a 1080 if $ amount was less of a concern. vast spiderweb for sure.
There is an Injora servo that claims 35KG at 16 bucks, i dont think its going to reach 35KG, but im really curious about what can it do for 16 bucks
35kg is a pretty achievable number now- all of the Amazon 35kg servos make more than claimed. I’ve tested a blue case Injora 35kg, and it hit the number but is the slowest servo I’ve ever tested. Actually remarkable in its slowness.
Can I send you a servo to test? CLS1227RP from Flash Hobby, I've been considering this one for SCX24 and/or Dig servo
I would love to test that one, as at least on the sheet it's outperforming the AGFRC A20CLS / Reefs 99. 11kg is a big claim for a micro.
@CrawlerCanyon yeah I have all three and it's a very impressive servo especially for 36 bucks on Amazon
I put nitro pro servos in everything from a race buggy to a crawler... I would not put a savox servo in anything..
Man those numbers are crazy!!! But that noise kills all the good will gotten by those numbers!! If someone made a servo that could do those stats without the noise I’d pay premium $!!
Oh its a ..sqeeeeeetch...Savox 😂
No need to edit since you can keep talking as you do whatever.
Nsdrc RS1 is the same price as the 2290sg but its whisper quite and claims 1200oz, although it does require a 10amp bec. To me Savox is a trash overpriced brand pushed by hobby shops, anything NSDRC, REEFS or ShiftRc is miles better.
The NSDRC servos are great, and I"m happy with every one here (past half a dozen, at least) but all of the torque numbers given by NSDRC are instantaneous torque, which is (IMO) a meaningless number. None of them have made the mfr. claim (save for the bargain RS-500b,) because I don't test instantaneous torque. They still make excellent numbers are offer great ounces per dollar, so I don't know why they choose to "overspec." Better to way underclaim and overdeliver like most Holmes, AGFRC, Amazon, etc. servos.
@@CrawlerCanyon I currently have 10+ NSDRC servo's ranging from 1/10 to 1/24 and none have let me down. I really want to try some shift servos but I can't get past the screen printing on them, I like my servos to be all black and quite.
@Steve ...All the other servos you mentioned are made by the same company(AGFrc) ...the numbers of the savox are good but its too loud and too expensive....but I see why racer love it.