10 things you need to know about servos - Servo 101 and FAQ
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- เผยแพร่เมื่อ 3 พ.ค. 2024
- Here is a detailed explanation of rc servo technology and all the terms related to torque, speed, servo arms, BECs, ESC, voltage, amp draw. This will allow you to get the best servo for your needs. This servo how to will answer faqs about the best servo for crawlers, buggies, slash, off-road and onroad cars as it explains how servo motors work.
Shop all servos at amainhobbies.com - snp.link/4f413d7c
Savox 1210 - snp.link/33d98220
Reefs 444 - snp.link/fa591f11
Powerhobby 729 - www.powerhobby.com/powerhobby...
3Brothers 311 - www.3brothersrc.com/product-p...
Traxxas 2255 - snp.link/464f148b
MKS X5 - snp.link/817dca23
Savox 1272 - snp.link/e015f599
Traxxas 2250 - snp.link/2148f427
Buy your kits and upgrade parts from this Amainhobbies link to support RC Review: snp.link/6640d084
Join the RC Review Facebook Group here: / 302319827122846 for early videos and extra footage. - ภาพยนตร์และแอนิเมชัน
Awesome video!! You have answered so many of my questions in the last several videos you have produced! THANK YOU VERY MUCH!!!! 👍👍👍👍😀
Really appreciate that comment
New to RC and I find your videos very informative. Thank you for sharing your knowledge.
Good info on the servos! How about a detailed video on what is a BEC and how to install and set them up?
Will do.
"600 oz in lbs is... (with extreme confidence) I am not sure." This is my kind of channel. subscribed
37.5 lbs
Your information is invaluable! You’ve saved me a lot of money and time in trying to figure out how to set up my TRX-4! Thank you!!!
Thank you for your excellent informative take on servos, been in the hobby for years and I learned a few new things.
I appreciate these videos! 👍🏾
Had my first run yesterday since doing my single Servo conversion to the TRX2255 in my Revo 2.0.
(replacing the dual 2075 stock setup)
Worked out great! No issues...run-time seemed just as long as the stock setup. (even though I see from your tests the 2255 draws alot of Amps!)
You did a great job at explaining servos. Maybe side by side comparison with the servo installed in the cars.
This is an older video but I always enjoy your knowledge, presentation and "Blunt Honesty" Thank you so much.
As a long time flyer all I have to say is VERY GOOD!!!
Just stumbled across your channel due to my traxxas slash 4x4 vxl. Stock servo, I noticed today it's moving slower. Probably somethings up but not sure yet. I watch your videos on how heat can be a factor in torque but I don't think that's my issue I am dealing with. Just trying to decide what servo to upgrade to now. Your channel so far has been more informative then I even had questions for because I didn't know what kind of questions to ask in the first place. Subscribed for sure. Thanks for the information.
Im semi noob to hobby, however, I really appreciate y'all doing these videos. Id be lost. Still running stock on scx 10.2 deadbolt crawler. Just stripped horn 😂. Great job rc review
Thank you. This video was so helpful and very informative.
This was very useful Francis!!
Your Servo Tester is nearly a GAME CHANGER!! Thank you for making LIARS out of some Servos that we had taken for granted. Invaluable information!!
Carmine ✈🚂🚙
WOW! Reading through (some of) the comments, I'm amazed at the amount of self perceived intelligent people!!!
I've no doubt that you could go much deeper than you have into the world of Servos, but realise it is what it is....a thorough but non scientific/engineering/mathematician explanation of the basics, with just enough of the technobabble to help people new to the scene like me to have a 'working' understanding.
I'm so new I'm still trying to learn the names of all the different parts. This video has given me a very good understanding of servos, and a very rock solid bases to work from....appreciated :)
Very informative. I have been in the hobby for MANY YEARS, DECADES EVEN!! Most of what is covered in this video I have prior knowledge of, some I did not. But I was impressed about the knowledge this video imparted to the viewer. Good Show sir! Just Saying.
Thank you! We're in a unique opportunity to learn so trying to share the info. The hard part is trying to explain and organize the info to many.
Good introductory material to get newbies oriented.
well done that man ,, he explained things simply , because some of us are .
great video! just got into rc drift
Thank you and love the way you explain! Dynamic torque is really what we're after because it relates response time to a change in load i.e. Power. So the other servos report a consistent measurement, but it's one that doesn't correlate as strongly with what we want.
Glad it was helpful!
Thank you for all the info. Ive learned alot from your videos. Would love to see some more about BECs. What they are and when u would need them.
Oh man, we just created a device to measure all the output of ESC's and BECs. We can publish that and then measure the output of one control servo using all these different power sources.
I like seeing the amp draw of the servos at stall,as your rig does.
That is useful information.
I run a 10 amp bec usually so there is lots of headroom.
servo runs cooler and it takes load of the esc so it runs cooler as well
Nice vid, thank you for clarifying all that info for us!
Right on.
I do love my savox servos! Gotta have a good b.e.c with them though.
Super informative video! I’m a legit noob, so there were parts in the beginning I didn’t quite understand. Either way, I’ve subscribed. 👍🏻👍🏻
Very helpful -thank you!
I do like your servo videos, I wish you would do a comparison for us racers dirt racers I mean. Cuz I I don't crawl but I do like the information on servos and I'll pay a fortune for the ones that I have now and I have a wide variety of them. Thank you
Very good and informative indeed!
Love your channel. I'm fairly new to the hobby and seen many of your videos. I've tested my luck with Amazon products and would like to see a review on the servos. I'm currently running a power hd 20kg. Keep up the awesome work/play.
The power HD 20kg is a good servo, the Annimos 20kg is not. My current servo is the JX HV7032MG 32kg-cm 0.09sec/60° for 35$ running in my Axial capra
Thanks for the info, very usefull!
Love this video. I am pretty new to the RC world, would love to know the difference between 3 wired & 5 wired servos
Great servo series. Perhaps you could include some JX servo's, they have some interesting stuff such as 12v brushless and brushed 46kg servos and now a bigblock 70kg servos! And at quite decent prices.
Hugely informative, thank you! So far the Savox 1231SG gets my two thumbs up.
A trusted name-brand, massive torque and perfunctorily quick at 6.0-volts, and $30 cheaper than others with similar performance. But it's NOT advertised waterproof which rules out playing U-boat commander or in snow or mud.
Ah wish you mentioned ohms law with your voltagecurrent relationship. Very good information for a theoretical person like me tho!! You should review some kinematics and solid mechanics, would help a lot in your videos. Some of the areas where you dont sound so certain like with the static and dynamic measuring standards, these areas of physics would go along way.
Thank you for your review, excellent information to get started :)
Glad it was helpful!
Hello! Very well explained! useful for beginners and not.....Thank you and Ciao! Nanni
HI great video sir. I just got the powerhobby 729 brushless servo for my Kraton EXB i love it. very fast and car handles like a dream. amazing servo for the price out performs savox and MKS by far for the price and other named brands which are more expensive. I had a savox 1268SG great servo but powerhobby and cheaper and better. Not sure how they do it but looks like a servo take over for power hobby. Keep up the great videos
Awesome work! 👍😀
You really sound/talk like my meditation teacher 'Geshe kelsang Gyatso' have u ever heard of him 👍
Another great video 😊 always happy to leave a gracious comment 😊👍
Great explanation on servos. How do I get to the play list on servos?
your channel is incredible you are my reference
Very informative video - thank you!
Very welcome!
Learned a lot. Thanks
Thank You!
What is important to me is reliability, longevity, customer support, and parts availability- i know those are things you really cant test... but when i get a nice servo- i want to run it for a long time and forget about it.
very informative..👍👍
I like the fact that on portek 170 you can take it out the wire. It makes it a lot easier putting a servos into a race truggy and buggy I can get the exact length I need so I don't have to worry about any extras flapping around and getting into moving parts.
Interesting insight.
Patiently waiting on the GMade Komodo Double Cab build
that's getting finished very soon. Just need to test and film.
Great reviews I appreciate your help…
Glad to help
I had a bunch of questions before I found this video, now I have none.. thank you
That is the best testimonial for our video. Thank you!
Hi thanks for all your work on Servos i have gained great knowledge from your videos. I have recently decided to upgrade my servos on my FTX DR8 and FTX Zorro I was told by my Hobby shop that the Etronics ET2063 would be best for the price and the spec boasting 32.3 kg @ 0.10 of a Sec at 8.4 volst . The issue is the the ESCs on both the RCs have 6volt BEC @ 2 Amps so in my mind the rating on the Servo will drop due to the reduced voltage. Question is how much by, a third or more? How is this culculated and is this the correct conclusion . All the best and thanks again.Alex from the UK
Thank you 🙏
Excellent.
How a DIGITAL servo operates?
What is the input signal in contrast to the input to an analog servo?
How it looks on a scope on it's extreme positions?
Very informative
Glad you think so!
I like you. A wealth of info. Great attitude.
I appreciate that!
Great asset to the RC community ! There is one servo on Amazon I can't find any info on, but it looks very interesting...its the BETU 45KG...any plan on using your awesome testing equipment on that one anytime ? It's in the mid price level, around 60 bucks...picked one up for my new Kraton EXB ( Early black Friday sale )...will be installing soon..just can't find ANYTHING on this servo ? Really good reviews, looks good...will be using it on 8.4v to get the full 45KG rating.
Thank you for your time and knowledge. I would like to upgrade the servos on my e-revo 2.0. I want to keep the dual setup. I’m looking at the savox 1210, power hobby 729 and traxxas 2255. (This is my 1st RC. I am a complete novice) do I need a bec? will 1 bec work with both servos? Any help will be appreciated. If you happen to have a setup I should buy that would be great. I prefer to have a comfortable amount of power in the servos. The electronics in my truck are stock right now.
Thanks for the vid.
Right on. Hope it helps some folks out.
Very informative ty😎🤙
Any time!
Great info as always, great job! Anybody have thoughts on the ecopower wp120t? I've got one in my Capra and I swear I'm not getting enough throw. Going to try a slightly longer servo arm next.
We have that. We'll publish soon.
I have been enjoying this series. As someone who is getting back into the hobby after a long hiatus I have been obsessively consuming any information on the tech changes (there are many) in the hobby since I was last apart of it. Are you publishing a table of the servo test results somewhere online that we can use as a quick reference as to how the servo's tested?
Yes, we'll definitely publish a reference when done.
Just got back into our childhood hobby too. :)
Lots of information here. I am looking at putting a 25Kg servo in a 1/10 scale "on road only" car. It passes all the information you gave but the decision was narrowed down by matching the color with my motor/heat sink and esc/heat sink combo. I came here to find the best placement for the servo and how to mount it. I could put the servo gear on top or the side. Who knows which way will work best? Not me. I have a bunch of space inside. I want to get the most travel out of the steering.
You are amazing
I would like to see the BLS--H50B tested its almost 800 oz inches @8.4v iits steel helical geared for 85.00
greetings, my 400kg-cm has arrived, use 24v, 24a, anything i need to interface between this servo and my battery pack??? and thanks for the detailed demo !!!
I didn't see the links you've said to post in description about weight/torque conversions of servos. I know I can easily convert via app or google, but was wondering if you had some special servo converter online tool everyone knows or uses by chance?
Hi...what servo would you use in a proline pro mt 4x4 running a mamba x esc and a castle creation 2400kv sensered motor ..thanks in advance
Could you run a brushless servo on a brushed ESC and motor
I like Savox. Pricier but they do they job and tend to last awhile. Importance to me is torque, metal gear construction, and waterproof.
Great Video. I hope you can help me out with servo replacements. I bought a Redcat 64 Impala and 79 Monte Carlo. Both steering servos failed out of the box. Redcat just sent me their OEM (BS285-026) discontinued replacement servos. At this point, I just prefer to replace them with metal servos. Something that won't break the bank since these cars are just for slow and low. I have been looking online and can't seem to find one the same size. Are you familiar with the servos for these cars?
Can you please measure the amazon 35kg servo?
Would like to see 9imod everyone has them now?
I am a noobie in the hobby but amazed that there is so much to this hobby (like it is probably in any) and impressed at how thorough your method is. Thanks very much. I was thinking about the 2255 from Traxxas and realise that it is actually a waste of money on comparison to the Reef for instance. Many thanks!
Well said!
thank you
You're welcome
@RC Review Hi, I am trying to control a sewing machine foot pedal for a double amputee. Do you know of any RC servos that are powerful enough to get into the ~5-10lb torque range?
What is the best brushless waterproof servo and aluminium servo arm for the CEN ford Puma?
Most important thing for me is bang for my buck!!!! Just because a servo cost $150 doesn't mean it'll be better in my Crawler than a $19.95NZD servo afterall if I had a $150NZD servo I need to replace my battery & install a BEC meaning that $150NZD servo has know cost me $250NZD for little improvement....................... Oh but wait I now have a much greater risk of breaking steering & ripping the tires from the rims too..................
Hey thanks bro good info but I still have a couple of questions because I am looking to replace the original servo in my Volantex v792-4 atomic rc boat because it is very light I want a light servo with longterm strength because boats take alot of turn time and the rudder takes alot of forces during the servos engagement so I am looking for a low cost (under $50) lightweight as weight is an rc boats speeds enemy that packs a punch and is tough as nails and waterproof and have fallen down the servo rabbit hole so I am looking at some low voltage options like spt 25kg waterproof or the power HD 25kg low voltage or the turnigy 595 v2 so what do you think? And/or do you have any other suggestions? And what is the deal with the low voltage servos and them being marked as 6.6v so are they made more specifically for esc ran servos?? Or does it not matter???
Please make a video on the best servo money can buy!
Check out pro Modler servos www.promodeler.com/
I'm trying right now to find something good in the 50-60$ range, doesn't need 300-400 oz, for casual trail and light crawling....
Also, looking for one good servo, for a Bomber on 2.2 tires, but think I have figured out what to do for that...
If you have any suggestions for good servo options, without stepping up to the $80+ range, it would be most appreciated...
My scx24 jeep just got a new emax servo. When I turn all the way either direction but more commonly left, it makes the motor either cut out or surge. Any help is appreciated. Good videos also, you've helped me with my trx4 many times. Thank you.
Check that it isn’t crushing any wires at full extension 👍
I appreciate these videos, but believe you may be confusing torque with force. The motor is producing a torque, which is force times radial distance (actually a cross product). So "gowing further away" means less force for a given torque. Linear velocity is angular velocity times distance, so for a given angular velicty, going further away increases linear velocity. Not trying to be picky, but where you connect has no effect on the motor torque (and angular rate), only on the pull/force and linear rate.
for a trx4 Im looking at a coreless amazon 35kg servo at $45CAD. Ive been running a 20Kg one and so far si good but will profit from the extra torque (I have a Castle BEC to power it up). Are these amazon ones pretty much comi g from the same place but labeled doffere tly?. Anything you would recommend?. Thax in advance
just curious what you have to say about oblique gears. this video covers alot of what i need to know about servos. I am thinking about drop shipping some servos from china and the one supplier has offered me a good model brushless motor. I know oblique gears should be able to handle more force but i just wanted to know if you have any experience with them?
great video. Are bush-less servos better for bashing? does anyone on here know thanks. looking at the Powerhobby 729MBL.
Old post, but that’s a good servo. Brushless motors are more efficient, so less likely the need for a bec or 7.4 receiver pack.
What about 5 wire servo. Sick of it difficult to find alternative. Mostly in market is 3 wired but how to convert
Hello, I want to ask you one thing. What kilograms do you recommend in a servo for a 2kg lcg crawler? The esc I'm going to use is the hobbywing quickrun 1080 crawler edition
Kindly, have you made a video regarding water proofing and are the Chinese servos around $50 good enough because some of them specific that they are 50kg or more and with speed of 0.09/60⁰ with brushless motor, metal gears, waterproof etc?
Great content, but the camea focus is on the background cars :-)
I wonder if the scene was empty when they started rolling.
please cover getting servo back to center
Some of the information in this video is about a very specific type/class of servos common in larger RC. But if the goal here is a general servo FAQ..they aren't all 6+V. For example, I'm using 3.7V micro servos. Size-wise they aren't all 20x40x40. There are significantly smaller and larger servos. I'm using 12x23x23 (4g), and 6x16x16 (2g)....my smallest is about the size of the tip of your thumb. I'm using 28T and 40T (also non standard) horns with built-in dampeners. I'm also using 9gs with clutches. Servo savers will be rendered obsolete as more servos incorporate internal clutches...no savers required to prevent stripping. So the information in the video is good...but it is more narrowly focused than I expected based on the title.
Help me pick a good servo for my Bezgar1. Steering is kinda week.
Durability and torque where we run you need both or it's a short run.
I'm running a promodeler
470blhv in my trx been solid.
Wroncho is a noisey savox
Sa 1230 bec on everything I own except the trx 4 mamba x does not need it.
great share
What is the norm degrees of travel for a 1/10 scale crawler steering servo? 90 degrees, 180 degrees?
Are all servos interchangeable?
I’m have a rc4wd carbon assault. It was a crawler but the person before me had upgrade some things .
Now I have to start from scratch. Help
5:52 This is the exact servo that my son recently purchased from Amazon, and is having problems with. It's for his RedCat Blackout XBE Pro. After the replacement, the arm just wants to go through the floor. After unmounting it, but with the wires still connected, when powered , the arm just wants to rotate. Is this normal? Is there some type of programming that is required? Is the servo possibly defective?
What's the best servo for a hydraulic excavator
Digital or not yes I'm very old ,giro problem brought me here a question radio Link txrx amazon 25 red not able to reverse because of giro;reversed so I thought to invert tx mount ed upside down in no help how do I fix works fine with stock Arrma Big-rock servo,did I buy the wrong kind I'm learning, wanted tech advance before next purchase
We appreciate you and your efforts very much good work.
Where's that conversion? Not seeing it in the description as promised =D. Don't worry, I'll google it. But I'm not the only one that's going to look for it and be disappointed!