35K Coreless Blue Servo - Bench Review - Good as the Claims and Word of Mouth??
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- Опубліковано 21 чер 2020
- I was asked by this servo's vendor to kindly produce a review, and three parts are the result:
Bench, where I inspect the guts and see if it will out-pull my go-to servo
• 35K Coreless Blue Serv...
Park, where I stress-test the installed servo over skateboard terrain
• 35K Coreless Blue Serv...
Creek, where I check if it's waterproof, and able to withstand serious boulder bashing • 35K Coreless Blue Serv...
The testing rig is an Axial SCX10ii, 3S-powered, and with a long list of modifications.
I make no recommendations, allowing you to judge for yourself, and at the time of publishing I had run the servo for one day (so this is by no means a report on long-term reliability -- your mileage may vary). These are just my observations, so contact the seller for more information and purchase at your own risk.
Where to buy, provided by the vendor:
US:
amzn.to/376V7wg
amzn.to/2TnE5WL
CA:
amzn.to/30m4UMw
amzn.to/30m4Z2M
DE:
amzn.to/36VPdyc
amzn.to/36ZcNKo
JP:
amzn.to/30jIqMi
amzn.to/36ZfM5y - Навчання та стиль
Thanks for this. Ordered one myself with hopes it could be suffice. Glad I came across this video.
You won't be disappointed. Just don't submarine it constantly, since these "waterproof" Amazon servos are only what I would call 95% waterproof. Thanks.
Ive seen people cover them in this PC stuff they use to waterproof electronics @NaturallyRC
I've been struggling with depression recently and even my favorite hobbies are hard to motivate me into doing anything I'm often left with a very sour taste in my mouth over the smallest and most insignificant things and somehow your video put a smile on my face. I love the information and the real world demonstration you also seem to have a calming voice lol
Thank you for your heartfelt and generous comment, this guy. I truly hope you have looked into all the professional mental health resources available in your area. After years of trying to cope on my own (expecting music, hobbies, sports, to do the trick), long ago I was finally persuaded to talk to my doctor. So worth it. That's the only advice I would ever give, because every person is sooooooo different. Cheers and all the best.
Great job, very thorough review and information. Great Vid my friend!!!!
Thank you kindly! Man, it took forever. I can edit a trail run in an hour, but that took days. LOL
Really good video! I learned a lot. Thank you for putting the time to do these, they really help beginners like me! subbed and liked!
Thanks! If you have any questions, about ANYTHING RC-related, particularly crawlers, don't hesitate to ask.
I am planning to buy one. Thanks for the review which is really helpful.
You're welcome. Most people say it offers good bang for the buck. Just not quite as powerful as the number on the side says, but it seems everybody exaggerates, except for Reefs and Holmes. Even my go-to Savox has been caught cheating by RC-Review.
Great deep dive review! Thanks👍
Thank you GunX. Practically everything has changed in the RC world since I did that video years ago, but that servo is just as popular as ever and going strong for a lot of folks.
This servo is a rock used in the slash already looked like an overkill. It killed 3 metal servo horn! I got it for 30 euros and NEVER rusted, broke or malfunctioned. It is one of the best servo in the market, considering the amount of rebranding and overpriced junk this top!
Thanks for the feedback and information. Many of the guys I trail with on a regular basis also swear by this servo. Good value for the money. Cheers!
Awesome review 👍🏻
Thank you, Oliver. I hope it was helpful.
NaturallyRC providing helpful information. I like it. Since it's about double the cost of the popular 20kg model, it's good to see that it's actually waterproof, and has what appears to be decent quality components inside.
Glad it was helpful! I was very relieved when I looked inside, and began to suspect that this one was going to be a positive review.
Thanks for the review
Very nice review. 👍🏾
Thanks. It still works after lots of use all summer long.
I must say I love your videos good editing you get right down to business I like that
Glad you like them! I always write a script, first, instead of trying to think of what to say while the camera is rolling. Some UA-camrs are good at winging it (and therefore don't waste the viewer's time) but they are few and far between imo. 😁
Great .this kind of review that i looking for..thanks
Happy to provide.
Great demo my friend. Excellent info on this servo 👍👍 Love the channel and new su b
Much appreciated. I'll check your channel out in return.
Thank you for the great review. Now I don't have to open up the servo to check all of this.
I may be too optimistic but I am planning to use it for a steering of my kid's power wheels.
Happy to help. This servo continues to get repeated use (and punishment) in one of my go-to trucks.
My Zoskay DS3235 / FeeTech FT5330M 35kg servo looks nothing like that. When I popped it open, I found a bunch of damaged orings used to make it "waterproof", a small gob of grease on the smallest brushless gear, and some little balls of solder on the bottom. They don't use heat shrink, and the "triple coated" conformal coating was very thin, and only applied to the bottom PCB for driving the motor. They also use two cheap non-shielded bearings around 5.7mm ID, 9.9mm OD, and 2.4mm thick on the top. Lastly I think you are hilarious if you think I'm going to be able to replace a coreless servo motor. I tried to google both model names, no spare gears, no spare parts, no spare motors. This thing is junk. I only bought a few for training myself without opening the more expensive $100 servos.
Thanks for the update, FL. Evidently, a lot can change in the nearly two years since this review came out. I respect your disappointment.
Thank you, this is great for heavy rig and cheaper than noisy savox.
You bet!
Planning on getting one of this for my Laegendary Thunder (FTX Carnage 2.0 clone), it came with a 3.5kg one that does the job but feels week at times, great video and good explaining, but i do see a flaw in your test, the table is flexing some, not that the test is bias or unfair, but, that table flex can help making both look like they got the job done, even if one did it better.
Good point. I was surprised at how robust the test bench has to be. Even "weak" servos are surprisingly strong, making a heavy bucket necessary. Good luck with the Legendary Thunder and thanks for the comment, 402.
Excellent job, exactly what I was looking for. One request though, can you do current draws? Keep up the good work!
Great suggestion! If I ever get another free servo to review, I'll hook it up to the multimeter and see what gives. I can't test this one, since I blew it up testing it for the benefit of my viewers. LOL. As every good reviewer should do -- find the breaking point. Cheers and thanks.
@@NaturallyRC Also speed tests would be super useful, don’t need fancy precise numbers, a lineup of half a dozen to a servo tester blasting back and forth and seeing them work would be sufficient =)
@@travispratt6327 Great suggestion. Speed never really crossed my mind, since my channel is a crawler channel, and we rarely go faster than one or two miles an hour. It's all about torque, toughness, water resistance. Cheers and thanks.
@@NaturallyRC True I have a crawler too but speed can be really useful even in crawlers, I’ve seen competitions where someone had a lighting fast servo and could jerk back and forth to move himself sideways and stuff like that =) I’m looking for the fastest I can get under about $40 for my arrma Typhon with a gyro though, makes much more of a difference to be able to zip around and give it that buggy feel =)
@@travispratt6327 Right again. In competition, speed is important. Good luck with your servo search. Have you checked out this guy's channel? ua-cam.com/channels/imCr7kgZQ74_Gra8xa-C7A.html
Ordered one, its coming today going to see how it holds up in the basher
Awesome. Feel free to post an update once you've put it through its paces.
I have used that servo and it performs great at a good price range
Thanks for the testimonial, WanderSon. Good to know.
Disassemble greatly appreciated
You're very welcome. Love your handle. My own Eastern European surname has all of seven letters, four are in pairs, is phonetic, and yet people have mispronounced it my entire life, so I get it. Thanks!
@@NaturallyRC tbh it's mostly hard to spell for native english speakers.
Off course no one is struggling in Poland with my name Maciek. Google translator can tell you how it sounds. I lived 7 years in UK, where i've learnt they struggling hard.
And really it's not their fault, it's the movie industry! :-)
We in Poland get movies from many countries in EU, some from Russia and a lot from US. So we can often recognise origin and spell a name correctly, as well as our speach makes us pretty versatile when spelling other languages.
Whereas barely any country i've mentioned gets movies from Poland. But i met a Norwegian boy on YT, in comments under our MTB hobby videos. And we chatted multiple times, when we saw each others comments. So he memorised my name very quickly even in writing and was telling me it was easy for him to spell correctly. So it's not a rule, what i said about names and Polish are not the exception in spelling ability :-)
I can relate. Here in Canada, we are of course inundated with media from America, and encounter instances all the time, where US TV networks put subtitles under foreign-sounding speakers so viewers at home can get what they're saying. We wonder...why? LOL Their accent is not a problem for us. At least in and around cities like Toronto, Vancouver, etc, where every culture on the planet is thrown together in one big soup. Thanks for the fun comment and insights on what it's like around the world.
Hi!
Any followups about your later experience with these servo motors? Have you experienced any mechanical failure so far?
Great video. Thanks.
Great question. All reports, and there are many, indicate that this servo lasts a long time, and does not burn up or strip even under heavy conditions. It's not capable of delivering the torque or be as resilient as some of the new servos from REEFS and other top names, costing four times as much, but it's good value for the price. Cheers.
@@petekurelek3546 thank you very much.
Jeebus... I was watching the crawling footage at the end and thought, "man, looks like my backyard..." - then I saw your message at the end. Yup, my backyard... :)
I've had the same experience watching other UA-cams. There's something in your brain that recogizes the plants, the groundcover, the light. I've also experienced it watching TV, when two characters are strolling through some big American city park, and I go, hold on a sec. Google it. Yup. Shot in Toronto.
I also noticed the motor makes direct contact to the aluminum body to greatly help remove heat by using the body as a heatsink. Some of the cheaper aluminum body servos have a large space around the motor or even have the motor encased in a plastic shell and just use the metal body for looks and do nothing to help with heat.
Great point! Yes, I was pleasantly surprised to open it up and see the level of engineering. Thanks for the comment.
@@NaturallyRC Yea I recently got one of these and I'm surprised at how much you get for a servo that cost less then $40
@@fuzzytech3846 The one I would really like to try is the Holmes Hobbies SHV500V3 SERVO
this video is very encouraging for me, and i have one question, what is the length between the servo and the bucket that holds the water ??? again thanks !!!
Thanks. Glad to help. The servo is clamped to a table thigh-high, and the bucket sits on the floor. The servo raises it only about a centimetre, but that's plenty for me to know it has done the job. I should have taken a better shot of the set up.
@@NaturallyRC so my guess the table is 2 feet high ??? thanks buddy !!!
Do you find that when it's turned off, the servo arm or wheels it's attached to turn really easy ?? Mine does that and I don't know if it should, works OK I guess when it's turned on though....
Great observation. Although they all look the same on the outside, servos can vary significantly in the arrangement of the gears, making it possible or impossible to rotate the spindle by hand with the radio off. NEVER with the radio on, or you have a problem. Honestly, I kind of like the ones you can rotate radio-off, so you can straighten your front tires on the bench or shelf. If you do this slowly and not all the time, I have read that it is not detrimental to the life of the servo. Cheers.
I found that this servo actually makes around 22kg, around 300-310 ounce inches. For $30-35$, at 7.4 volts it's extremely fast, and has plenty of torque for an 8th scale monster truck... And seeing as how it's completely submersible is impressive. I just wish they were a little more honest about the torque rating. People would probably still gladly buy it, I still did even knowing it was an overrated servo. That's really the only bad thing about it.
Great comment, great analysis. Thanks so much for the data. Sadly, we have entered a situation where manufacturers who refuse to exaggerate their specs risk losing business to those who are less reputable. That said, I have it on good authority there remain a few holdouts, like Holmes Hobbies, Reefs, Brothers, for instance, and personally, I trust Savox. I must quibble, good-naturedly, with "completely submersible" (big grin). Steps were taken to discourage leakage, but with ALL servos, take it from me, repeated submarine activity inevitably leads to a tiny box that's moist inside. LOL. Thanks again! Cheers.
I’m using 20kg same servo they are very good indeed 👍🤜
Good to know!
I broke the 25kg’s. 2 of it. The internal gear crushed. I replaced with this 35kg steel gear for now see how it last.
Btw, my rig weight is 4.2kg
Great review. I really enjoyed your video.
I'm considering this servo for an ARRMA 1/7 Mojave 6S V2 4WD BLX. I see this servo comes in both 180 degree and 270 degree control angle configurations. Which would you recommend for the type of truck I'm looking to install it in as a steering servo? I believe that the control angle for steering servos on most RC trucks is no more than 90 degrees so does the control anglr even matter?
Thanks in advance,
Eric
You nailed it right there, Eric. When you think about it, if a servo passes 180 degrees, it's pulling in the wrong direction. And even when allowed to (emphasis) approach full 180, a servo is doing hardly any work towards the end, as the pull or push vector is all used up. If you need a lot of throw, I always recommend a longer servo arm with a shorter sweep. So much simpler to get the geometry correct, and you don't give up much in the way of torque, especially now that high torque/high voltage servos are commonplace. Great question, thanks for the comment, hope that confirms what you already knew.
@@NaturallyRC Well, I guess I was just looking for confirmation of what I was thinking. I really appreciate your reply. Great video and keep up the good work.
@@thriftysurvivor6117 You got it. Thanks very much.
@@NaturallyRC It was my pleasure; No thanks needed.
@@thriftysurvivor6117 Canadians eh. 😁
Can you please tell me where you got the dog? I've been looking for one and can't find it.
I make my own driver figures and dogs (always with a dog), by cutting them with scissors out of high-density black foam -- the kind used to package RC parts such as Traxxas brand aftermarket shocks. I use similar foam for the seats and dashboard, cargo, etc. By using foam I get a detailed interior for my trucks without throwing off the centre of gravity by adding a lot of weight above the axles. With a bit of practice and a bit of skill, you too can (possibly) make your own drivers and dogs. Cheers and thanks. ua-cam.com/video/i3arGIDtpws/v-deo.html
i wana use this for my active aero....how do i wire it.
If I understand correctly, you want to adjust the "wing" on your RC car using a servo. If this is the case, this is the wrong servo for that. You don't need all the weight, power, and waterproofing. Rather, do what the model airplane guys do and use a micro servo like this. Just mount it to the chassis and run a thin strong wire to the wing. You will need a receiver with an aux port, and a transmitter with three or four channels. Cheers. www.amainhobbies.com/spektrum-rc-3.7g-submicro-analog-air-servo-spmsa3070/p-qqzqt2uq7m2xactz
Here I am looking for reviews on an Amazon servo and what do I find? NaturallyRC reviewed it too! So, as stated at the end of the video, how did this servo fare after long term use, my friend? I've been using an old standard Traxxas servo (or whatever they put in the RTR TRX-4 Sport) since my original one from Element seized up. Element did send me a replacement, but I've since used that servo on another project. I've been unimpressed with the Traxxas servo and want to upgrade and saw this one. Let me know your thoughts o wise one! :D
Hi, Jon. Unfortunately, I can't speak to lonnnng term because I wrecked that servo in the torture test process by allowing the servo horn to bash against rocks. But going by the construction and materials I am confident that it is fairly priced and should provide excellent service under normal conditions. HOWEVER, only if it stays dry, or you open it up to remove the water now and then. Servos like this that are retrofitted with gaskets in order to claim "waterproof" are never fully impervious to water. In my experience, the only servos that pass that test are purpose built waterproof servos like the blue ones from Savox. Apart from that, longevity equals ball bearings, which a lot of RTR servos do not have -- they have bushings instead -- and why name brand, expensive aftermarket servos (with their quality bearings) are generally worth the money, imo. Cheers.
Same maker, aren't they? Dsservo? I started looking for a new servo as mine(Power HD 20KG)was acting up. I got a 5 dollar glitch buster first and presto, back in business....I was getting throttle when steering or activating the servo. It may have been a problem with the receiver, regardless the cap fixed it. ✌️
Great point, 66. Honestly, who can keep up with who makes what, in a big market like China. I certainly see more similarities than differences when I crack open differently branded Amazon servos and compare them. I wonder how many lipo factories there are, too. Probably five although there are 500 brands. LOL. Glad you got your problem fixed, but I would suspect the rx for sure. I have Flysky A3 receivers in all my rigs now -- affordable and solid. Cheers.
@@NaturallyRC nice, one day I may upgrade to a better controller/receiver, it all adds up so we'll see aside from a few 1/76 Turbo racers I only have one rc a Granite 4x4 that I upgraded...should have saved a bunch of money and bought the blx lol but it's been fun doing the 'wrenching'...If I get another 1/10 or larger I'll definitely look into the flysky. ✌️
I can't seem to find a manufacturer's datasheet for this thing - anyone know about that ?
Kindly let us know if you find one. 👍
Can I use this 35kg servo for my TRX6 with a 3C 11.1v lipo battery?
Absolutely. It will make a great steering servo for those big fat (excellent) Canyon Trail tires. The X4 is a superb truck, but owners agree, the stock electronics are the weak spot. Thanks for the question.
Any idea on the current draw at stall or heavy load?
Great question. Sorry, no, I did not get that technical in my investigation. If you haven't checked out Francis' channel...he has detailed stats on dozens and dozens of servos. Torque claims busted left and right. Cheers. www.youtube.com/@RCReviewChannel
@@NaturallyRC Thanks!
is it fast enough for a 1/10 stadium race truck and fast? is it still holding up>
I would say so, yes. It seems very fast compared to my other servos, but I don't race, I crawl and trail. Cheers and thanks for the question.
Are the zoskay and annimos 35kg same one like this one on the video
Sorry, I don't know. This is a Zoskay servo in this video, but I only have an Animos 20kg (three in fact) to compare to not an Animos 35. That said, the guts are quite different -- less robust in the Animos than the Zoskay, which is dead btw. Cheers.
i have buy DS3230 for 30KG. Can you say me if i can hack for continuous rotation ?
I can't say for certain, but I CAN say that I have taken apart dozens of servos in my time and they all look pretty much the same inside, which leads me to believe they all can be converted to continuous. It has been a long time since I converted one, myself, but as I recall it was very easy to do. I used to use continuous rotation servos as gearboxes for my large-scale model railroad maintenance vehicles. Thanks for the comment and good luck.
@@NaturallyRC merci thank you !
My esc puts out a measly 5.v to the servo, and since my stock servo is rated at 6v, my steering feels very sluggish especially at low speeds. I would rather not mess with an external BEC so I was looking at this since it outputs 4.8v+. Anybody have any experience using this with a 5v system?
That's a truly excellent question, Edgar. Stands to reason that a powerful servo like the 35Kg operating on reduced volts would result in a moderately powerful servo, good enough to get the job done in most crawling situations, but I have never tried this. All my rigs are equipped with Hobbywing 1080 ESCs, for good reason: They last (nearly) forever, are truly waterproof, easily tuned with the INCLUDED programming device, offer outstanding performance in the field, especially when you ENABLE setting 15, AND they're affordable. The 1080 is one product I (and all my friends) can recommend without reservation (and we don't get them for free). In fairness, I have only tried two other ESCs, similarly priced by Reedy and Dynamite -- both good, but not good like a 1080.
@@NaturallyRC thanks for the response! I really don't understand why a company like Castle puts out an esc that only produces 5v ( my best guess is that they want to upsell you their external BEC and link system), since a majority of high end servos work with 6v or more. I will be using this for my short course truck so fortunately a very demanding servo is not necessary.
@@Girtthquake I know, eh. Same reason half the lightbars you buy are 5v max. What's up with that? Hope you make it to the winner's circle.
Make new gears, or overvolt the motor. Those are basically your options.
I haven't tested it, but got 1 spt 35kg servo at home and it looks quality-did open it. There is factory store on AliExpress and they offer low voltage variant of their servos. Their rating is then for 4,8V, accepts up to 6V and with standard core motor takes 0.22 to 60° @4.8V
But they do have different variants, so i guess different motor servos will be faster. Many stores on AliExpress sell those too, so it's up to you if you wanna look for the factory store or any other trustworthy one.
i bench tested my servo only and found it not noisy, and having no problems with glitching or unwanted behaviour.
can I use this in an arduino project?
That's a very broad question to answer but unless you're part of a competition that limits the kind of components you can use in an arduino project, then I say go ahead. Servos are cool highly useful devices and the more you learn about them the better. It may take some fiddling to get it to work with whatever you have in mind, but you'll be better versed in electronics by the end of the process. This might help: docs.arduino.cc/learn/electronics/servo-motors. Cheers.
The issue with this servo is the play before it holds.... you can move the horn quote a bit before it starts to fight
Thanks. Interesting observation. I don't remember that, and can't check since I destroyed the servo testing it for my viewers. The wholesaler has promised me a new one to review and I will be sure to investigate. I would only ask that you ensure the servo horn is not loose on the spindle. The soft metal (junk) servo arms provided are incapable of gripping properly in a stressful situation. Cheers...
@@NaturallyRC interesting. For the clamping i use threadlock on mine. No its reslly the servo play and not the horn when i tested. Someone online too tested them
@@EXTREMERC416 Thanks for getting back. I will for sure check that out.
Was there an update?
Sorry, no update as the servo was destroyed in the review process (as it should be) and the manufacturer failed to send the replacement that would allow me to do a long-term analysis. I can however report that lots of versions of this servo, owned by friends and subscribers, are going strong after many months. That said, if you have the dough, I always recommend going with a name brand like Holmes, Reefs, or Savox, as their quality wins out in the end. That's what I do. Cheers...
I have a 35kg in my stampede and it takes a beating.
Excellent info. Trucks like that are brutal on servos.
How has it resisted over time
The motor torque is in KG but you have to use some stupid ounce unit to measure the weight? Why!!
The USA has not adopted the metric system, and my American friends (my biggest audience) still measure in ounces. Side note: Canadians, like me, of a certain age intuitively combine and switch between imperial and metric, like a person who speaks two languages. We don't even think about it. Thanks for your comment. Cheers.
Its waaaaaay better than savox
I would say, yes and no, and depends on which Savox. Yes, you pay more for a Savox with similar power, but if (make that, when) something wears out inside you can order an inexpensive refurb kit with all new gears and bearings. With Amazon servos, you are forced to wastefully throw away the whole thing. Also, if you constantly drive in creeks and rivers like we do around here, you can't beat a bona fide waterproof Savox. The light blue servos are not regular servos retrofitted with gaskets, they're designed from the ground up to be submersible. So it depends on what you want out of a servo and how much you want to spend. Thanks for the comment.
You’re definitely someone who sells these and are trying to hype it up to increase sells lol
LOL. I don't actually, sell anything, and I'm not beholden to any manufacturer. But your point is a good one. Since doing this test I've heard from lots of folks who agree that this particular servo is good value. I destroyed mine during the testing phase, which every good reviewer should do. Thanks for the comment.