Electrohub Build

by FliteTest | July 16, 2014 | (14 Ratings) Posted in How To

...but don't just stop at quads! Tri, Hex, Octo, it's all possible with the new hub. 

If you're looking for just the power distribution plates, click here

RTF Quads offers an ElectroHub Electronics Kit that you can customize with everything you need.

The flight control board is already preflashed so no need to fuss with expos. It's basiclly plug and play! The packaging also clearly labels everything including the proper motor rotations. 

Today we are going to be setting up the Spider Quad (aka Dead Cat) configuration. This is a good setup for mounting cameras and keeping the booms out of the shot. 

We recommend that if you are also building the Spider configuration to add the Camera/Battery Mount. This helps to balance out the quad much better. If you are building a basic X or Plus configuration, the mount is not necessary. 

Whatever configuration you end up building, we hope you have as much fun with this kit as we do!

 

LINKS

 

What's your favorite type of multirotor to build? Chat it up in the forums!

COMMENTS

driftoz on July 31, 2014
ive just ordered this kit but im stuck on choosing a motor atm as i dont know what the motor mount hole sizes are? if anyone has a hobbyking link for a 4s capable motor preferably from the AUST warehouse that would be amazing thanks
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Gantorin on July 17, 2014
I am going to put Capillary Action taped to the underside of the wing of my next build :D
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gremlin88 on July 17, 2014
SparkFun has a great soldering station for $40.
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casehatter on July 16, 2014
Josh who's that Guy with ya ...??? LoL...!! Better Alex cooler to I'd say.. was there at one time now I'm coller..!! Good build guys..!! nice circle as well
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Bailey on July 29, 2014
will the tilt rotor be sold separate for the tricopter
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Gantorin on July 17, 2014
The guy in the back is Peter from Foamandtape off Youtube... Awesome guy!
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Bailey on July 29, 2014
what is peter working on
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Kurt0326 on July 17, 2014
That looks cool, if I get in to copters... But what I'm more interested in was the bomber in the background! looking B-17ish if you ask me.
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PropSpinner on July 17, 2014
See, you hang with Peter and you learn new stuff! LOL
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SGRacer on July 17, 2014
Is the hub still just wood? or something more durable? at 34:03 it looks like sawdust coming from the board.
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rcflyer729 on July 17, 2014
No i think it is some kind of g10. I have never heard of a wooden power distribution before:)
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PropSpinner on July 17, 2014
Did I see Peter building a cargo plane in the background????
Is there a FT Twins Cargo quick build in the future????
FT..... Foam & Tape or Flite Test
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udo789 on July 19, 2014
What happened to Alex’s curls? I liked the way he would coyly, yet manly, brush them aside. This new altar boy do just doesn’t cut it. The curls gave Alex that creative, artistic, but at the same time unpretentious and likable look. I am sure he is all of those things, so why not let him express them? It was also a nice counterpoint to all the other team members’ looks. Whose idea was this anyway? I vote to bring back the curls!
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Ano Pilot on July 19, 2014
Well you SOLD it to me. Everything is on order, except I ordered the bits because it makes no sense to have 4 bits of wood and simple machine screws shipped across the Atlantic. What wood are the arms, Hard Maple? I was thinking Mahogany might be good... very stable and light.

CapillAry guys... let's not create another 'soddering'.

Still... I love the show and your team. Please KEEP trying to reduce shipping costs to the UK and Europe. Also, so VERY sorry about the XXXX you are getting from the FAA, shame on them. Treating you all like that is like kicking a puppy.
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torogitar on July 20, 2014
I think this is the frame I will chose for my first quad. But I just wondered what batteries you use, more specific than just 4 cells. Thanks
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Shaggy-will on July 20, 2014
I'm going to buy this and rtf quads esc/motor kit for this. And I'm going to run a 3s 2200 35c I think that's going to be enough ? Guys tell me if it will not be but I think it will thanks
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Eddy Current on July 20, 2014
WRONG. Sorry, but I've got to correct what Josh said (at 42:20 in the video) he likes the APM flight controller for Loiter mode and GPS, but Josh says the APM is "almost $300", that is wrong. Paul at Ready To Fly Quads sells his APM 2.6 boards with GPS for $74!!!! A Bargain!! It's worth that just for the Return To Launch (RTL) feature. Here is the link...
http://witespyquad.gostorego.com/flight-controllers/readytoflyer-2-6.html

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sailorJohn on July 20, 2014
It's been a while since I actually enjoyed an episode of FT ,now it seems it's all about quads and fpv ,sure I appreciate the help in building a quad but with all the technical advances it seems I am assembling a second rate antique. Lately it's like watching the HK promotional videos.
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hollywoodfox on July 22, 2014
You guys look like your not enjoying it anymore. bring back the fun..
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Ghost on July 28, 2014
I am looking into the Naze 32 Boards and would I be able to use one to run a spider quad, and if I can is there a built in configuration for the spider quad in the configuration software, if not how would I find the values for that?
Thanks in advance!
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MiMo on August 11, 2014
Hello Guys,
What PID parameters are you using with this frame? I noticed that the default PID on the KK2 are quite too high (a gain of 80 makes the frame unstable). I changed it for 30 and it was better.
Any advices for P I and D?
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K27R on August 18, 2014
I used what was installed from ReadyToFlyQuads. I changed the Rate from 0.90 to 1.30 and expo from 0.65 to 0.30. I am used to 3D type helis, airplanes and expect them to respond when I move the sticks. It is nice when the quad does auto-level!
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gmskidjit on August 13, 2014
Just ordered up my Electro-Hub kit. Going to take my time and learn on the Nano QX in the mean time and just order different components as time goes on.

Also, I looked into the origins of the "dead cat". It is quite disturbing to say the least.
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K27R on August 8, 2014
This is my first multirotor that is bigger then a nano, like the ProtoX and some other little quads. You sold me on the Electrohub kit and electronics from Ready To Fly Quads. Took about a week to get both. I have it built. It took me a little longer then two and a half hours, but it is done and flys good. Except it doesn't Auto-Level.
How do I get the controller to Auto-Level? Alex mentioned that he doesn't have the Auto-Level hooked up. How do you hook up the Auto-Level on the controller that is included in the Ready To Fly Quads electronics kit. The controller I received is the MWC (MultiWiiController) Flip 1.5. On the package it says that it has MWC 2.3 loaded&tested.
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K27R on August 18, 2014
So I found out how to get the auto-level to work from this video: https://www.youtube.com/watch?v=iry4vaE4RUY. Now this makes the ElectroHub easier to fly especially when taking video.
Now I want to install the Pimp Your Flip 1.5" - Baro & Mag add-on board and GPS.
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TimmyGT on August 26, 2014
Can anyone suggest good motors that are comparable to the ones in the readytofly electronics kit? That website has said that the kit is sold out and due back in stock in 2 weeks for over a month and I really wanna try this thing out, I got the frame and camera mount weeks ago and have em ready to go!!
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sidneyki on November 22, 2014
What battery do you recomend?

OSD, GPS, RTH/RTL, Aptitude Hold, any suggestion on this?

Thank you
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onelesseye on December 14, 2014
The video was good, but I'm afraid you skipped right over the part I needed to see. I was wanting to see ALL of the solder points. I get how you get wiring from the motors to the esc's. Then from the esc's to the pads on the hub. But then what? How do you get from the pads of the hub to the reciever ports? This is my first quad build, and have no idea how some of this works and the video glazed right over it. Any more info would be great.
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waynerayers on December 28, 2014
check out Ready to fly quads, they have great info on the flip and how to hook it up. your receiver and flip controller do not hook up to power distribution on the electrohub.

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Nat992nbd on January 7, 2015
What is a good four cell to use on this frame

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CharlieD on January 19, 2015
Hi does anyone know what c rating to use with 20A esc and witespy red special motors? Would be a great help if anyone did know. Thanks
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Shinku No Sora on February 8, 2015
Depends on the size of your battery. The math to figure that out is pretty simple. Your battery's capacity in amp-hours (so for a 2200mAh, 2.2Ah) multiplied by the C rating will determine the battery's current output ability. With four 20A ESCs you'd need to put out up to 80A depending on the current your motors actually draw, and if you divide that by 2.2Ah you get a C rating of 36 or so, so to be overly safe and get good performance from a 2200 you'd need a 40C or so. Step up to a 3000mAh and you only need a 30C or so.
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Cartman on February 16, 2015
Hi, I making hex configuration. I purchased RTF kit from RTFQuads with 2212 motors and 20A ESC's. I also have 5200 4s multistar battery and the same capacity 3s. This packs have C rating 20C pick and 10C constant. So is it right way?: 5.2A*20C/6=17.33A, so I am ok with this packs (4cells and 3cells)?
Thank you.
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Chioxin on March 1, 2015
Hey guys!

I just wanted to say this looks amazing and you guys build a lot of really neat things! I would love a parts list though of some sort as I would absolutely like to build a similar thing! I noticed you guys can use 3 or 4 cell batteries, and I kind of want that 4 cell feel for the most part, or at least the option to use one or the other! However, I noticed in your shop you have motor build set ups that only use 2 or 3 cell batteries.

What I'm asking for is that you guys maybe provide a parts list that you used so that way we can kinda buy the needed parts and go do it ourselves? Or did I miss something? Is there a parts list somewhere?
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Chioxin on March 1, 2015
I believe I've found a few things now. A lot of your links in this article no longer work! Like the Electrohub Electronics Kit =( But I found it now!
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jenseng on March 25, 2015
This is my first multirotor and I put it all together according to the video but now it wont arm. Anyone have any idea whats wrong. I used the electronics pack from RTF quads.
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Jyunte on April 6, 2015
I went through this last night. First, make sure the transmitter is correctly set up. You will need to download the MultiWiiConfig utility, as described in the YouTube video "FLIP 1.5 for Dummies". Secondly, and probably the least documented "feature", is that the FLIP 1.5 board has to be *level* before it'll arm! It's mentioned, in passing, in several places, but I had the Electrohub on my desk, propped up by all kinds of junk, while I watched the video, and it simply wouldn't arm. I put it on the floor, and it armed immediately (even when I reset my transmitter so that it didn't have the correct throws, etc)! I have another problem however, which I'll post in a different comment.
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Jyunte on April 6, 2015
I have calibrated my ESCs by plugging each one, one at a time, into my receiver and powering the receiver on while the transmitter throttle stick is high. The ESC beeps, I lower the throttle stick, and the ESC beeps again. I've also done the same calibration with all 4 ESCs connected to the receiver at the same time while connected to a 4-way harness. When I increase the throttle stick past about 5-10%, all 4 motors begin spinning up at the same time, and go to maximum RPMs at full throttle, just as expected.

However, when I plug the ESCs into the FLIP 1.5, none of the motors begin spinning up until the throttle stick is at about 50-60%, and all the motors start spinning at vastly different times. If I had props on the motors, I think the Electrohub would instantly crash, rather than take off.

All the motors are spinning in the correct direction - that's not the problem - the problem is they don't spin up at the same time, and they don't spin up until after the throttle stick is advanced past 50%... and when I go to maximum throttle, I'm only getting about 50% of the RPMs that I got when all ESCs were plugged into the receiver directly (without the FLIP in the loop)!

My transmitter is correctly set up. I've gone through the Wiki pages at rtfquads.com, and get the same result, as when I set up my transmitter following the procedure outlined in the "FLIP 1.5 for Dummies" video on Youtube.. So, even though the transmitter settings are slightly different for each procedure, the result is identical. The issue seems to be the FLIP. The motors and ESCs all seem to be working (as evidenced by the fact the behave as expected when connected *only* to the receiver).

Any ideas?
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wmmc01 on July 10, 2015
Great video and kits. I am however confused on if I need to cross wire the two motors for reverse spinning? I have the RTF Quads kit, but it is not clear to me if I need to solder two motors in reverse, or if the controller/esc's already have that programmed? This is my first build. Thanks!
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_jshap_ on September 14, 2015
I recently built a spitfire and have a DX5e DSMX 5-channel transmitter and a compatible receiver. Would that suffice for this kit? Any help and suggestions for receivers if this one is not compatible would be greatly appreciated. :)
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ctrain2kx on January 11, 2016
hey guys.. need to correct the links section.. the link to the electrohub electronics kit has changed.. this the correct link.. http://www.readytoflyquads.com/electrohub-electronic-kit
thanks again for all you guys do..!!
Chris Lawson
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