Tricopter - Scratch Build by FliteTest

Rating: 4.86      69 ratings
Posted: April 5, 2013  |  97,380 views
INFLUENCE 92%

This tricopter V2.6HV is built around David's custom tricopter body which is available in our web store!

Parts used in this build: 

1 x Tricopter frame 
1 x M3*20 screws + locknuts 
1 x KK2 flight controller 
1 x Male to male servo connectors 
1 x 3 X 3.5mm bullet ESC Power Breakout Cable
3 x DT750 750kV Motors 
3 x Hobbyking F20A Speed Controllers
1 x 4s Turnigy 3000mAh LiPo
1 x BMS-385DMAX Digital Servo (Metal Gear)
1 x Gemfan 9x4.7
1 x Front wheel steering mounts
1 x Male to male servo cables
1 x M3x30 Hex screws (if building the camera tray)
1 x M4 lock nuts (for the DT750's)
1 x Distribution power adapter
1 x Battery strap
1 x Servo extension
1 x 3.5 bullet connectors


(Items without a link I've bought at local shops)
4 mm carbon fiber rod
40+ of 2.5mm zip-ties
1/16th plywood (if building the camera tray)
Blue locktite
CA glue
12mm (1/2 in.) Boom - (Poplar Square Dowel) 
Boom Lengths:
Front: 35cm 
Back: 37cm 

 

Tricopter Frame and Camera Tray Plans: 
Tricopter Frame PDF 
Tricopter Camera mount PDF

 

Here's everything you'll need to make your very own tricopter.

The scratch built tricopter with the vibration dampening camera mount attached.

Here's the before and after of the DT750 750kV Motor with a shortened shaft.

These are laser-cut wooden washers that will be available in the Flite Test store very soon!

You can make your own breakout cable or pick up one of these Hobby King 4 X 3.5mm bullet ESC Power Breakout Cables

Here is the assembled Tricopter Camera mount. You will be able to pick up a laser-cut kit in our store very soon! In the meantime, we have plans available.

The basic accessories for making your tail assembly. 

We will also have additional multi-rotor component available in the web store for those of you who don't want to scratch build the tail assembly and motor mounts. Our 'Rotor Bones' kits will be available very soon! 
Check back for when these will be available! Find out more HERE.

Zip-ties work great for securing all of these components. David highly recommends using these in your build.  

David's Tricopter body is designed to securely hold your booms in place when pushed forward, but easily pivot backward in the case of a crash.

More photos available in the Forum Post. Click the link below to 'Join the discussion' and share your builds!


 

 

 

 

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Comments

klaxalk April 8, 2013
Hi! Very nice tutorial. I have some tips for you based on my experience.

I screw in only one of two worm screws of DT-750 mounting plate. I experienced that even if I use locktight on them, they were continuosly unscrewing. And if you screw only one of them, the other part of the shaft has larger contact surface.

I recommend to put the propeller between two nuts and tight them oposite to each other. You wont pull out the shaft out of the motor. I just use regular metal pad between the propeller and the nut.

Best regards, klaxalk

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casehatter April 8, 2013
I hear ya looken good man..!!
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Cyberdactyl April 8, 2013
Hi David,

I purchased your plates way back when you were still in Sweden. I am very happy with them. But I did round the sharp pointy corners, but not quite the radius you have on the front, maybe a 1mm radius. It really reduces snagging your fingers and other objects on those sharp corners.

Please keep rockin' with inventive and innovative projects like the Afterburner EDFs. . ya gotta keep the boss happy ya know ;-)
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zev April 8, 2013
yeeeeees!
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iLoveRC April 8, 2013
All the tips that you mentioned are priceless.. I wish I knew those before I built mine.. I have all wired tangled and learned lesson harder way ;-)

Great video!
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cade861 April 9, 2013
I have one question where does the yaw servo plug into is it somewhere on the kk board or does it go directly into the receiver? I know that the 4 channels generally plug into the kk board and motor go one through three on the kk board but the servo im confused can somebody help me?
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klaxalk April 9, 2013
The servo needs to be plugged into the 4th output of the KK2. The board does all mixing so you can fly just like your quad or a heli.
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cade861 April 9, 2013
Thank you makes since
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FLYitRC April 9, 2013
yah as soon as its on the tricopter mode it does it for you! its great!
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krisrilee April 9, 2013
hey david, What are your settings on the kk2 board? like pi's and limits?
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Cyberdactyl April 9, 2013
Oh yes, one thing that should be mentioned putting epoxy on the DT750 wire and stator is be careful not put epoxy too close and/or on the aluminum bearing housing. If you do, you might find it extremely difficult or impossible to get the motor base back on.

I used JB Weld because of its superior strength and heat resistance. BUT there's a huge caveat to be aware of that has more detail here...

http://forum.flitetest.com/showthread.php?3769-kk2-camera-gimbal&p=45239&viewfull=1#post45239
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aidan284 April 9, 2013
Hi Flitetest
Do the rotor bones allow mounting for the dt750 motor??
Cheers
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FliteTest April 9, 2013
They will fit. However, they're best suited for 370 sized motors and smaller.
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aidan284 April 10, 2013
Will you be doing a video about them??
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trev June 20, 2013
do you need a special receiver or transmitter for a tricopter?
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squid10 April 9, 2013
Great job David,
and thank you!, you helped me a lot while i build my Tri.


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sharkovios April 9, 2013
Being a Rookie myself i found the video very informative and compeled me to go and start buying the list.
One thing that i'm missing, though, is how to setup the KK2 board.
Are there any resource that will help me, or maybe a second video explaining the setup of the KK2 Board :)

Thanks, Anthony
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FLYitRC April 9, 2013
http://www.youtube.com/watch?v=gF-0rgxE9Uw

this video goes through all the menus of the KK2 board.
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efbe April 9, 2013
David,

Thanks again but I am a little confused
Do I see it right, the left frt propellers is CW, and the 2 others are CCW.
Although, Your using the same propellers ?

That can explain why my 2.5 doesn't fly ?

efbe

efbe
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FLYitRC April 9, 2013
for V2.6 he has changed the direction of the left arm.
I built and am flying the v2.5 and it has all 3 the same direction. it causes a bit less stability but nothing noticeable. I love flying mine and it is very stable.
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Leo82 April 10, 2013
Counter rotating prop made my tri hover a little more level and servo wasn't tilted as much. Nothing more.
Why it doesn't fly? Does it tip over? Try checking gyro directions and maybe reset controller and start over. Also my tri was really unstable in first tests due to poor pid values.
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cloud9photos April 8, 2013
Looks great, I want to build my first multi-rotor, but I'm not sure what is better, a tri-copter or a quad? I was planning on doing the H-quad, but this looks great too. Also would the gopro with the protective case fit on this ok? I'm not brave enough to fly without the case on the camera.


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Leo82 April 10, 2013
I started with davids tricopter. Awesome yaw authority and fun to fly. Add some light strips to make orientation easier. Once you go tri you never look at quads... Exept i'm building a v-tail quad from my tri for testing heavy load quad with better yaw.
I'm no expert but i seen some quads and they had poor yaw in windy weather. Might been just bad ones.
I also had opportynity to fly dji naza quad worth a fortune. It flew little better than my tri and only cost 15 times more than my david style tri :D
I also crashed my tri from full speed and only cracked a boom. I put on a spare and flew again 5 mins later.
My tri has weaker motors and it can lift fpv gear with 300 grams extra. I'd say dt750 motors will lift even more with this new frame desing.
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damekks April 10, 2013
David and Josh talked about this in this Flitetest Q&A Episode
http://youtu.be/sMuu3EUqitM

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Dingo April 9, 2013
please do a tutorial on how to flash the ESC
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svonavja April 10, 2013
Dingo,
Check out this Great YouTube video on how to flash, I used it and it worked great, I also used this(http://www.digikey.com/catalog/en/partgroup/923-and-927-series/16202?print=1), Granted the pins needed bent but it works great! Cheers!
https://www.youtube.com/watch?v=NZsT0agRZMY
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wongthomas April 10, 2013
I live in Denmark, if you live in the EU i will flash your ESC free.
Just send me a email grumpyreview@gmail.com
Or see howto here: http://youtu.be/thwIJZj08rU
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psguardian April 10, 2013
LOVE this build, totally on my wish list for the next round of hobby $$... But $81+s&h for CNC'd CF plate, & NOT including any of the hardware or booms really? Please tell Chad (or whoever is doing the pricing) to make a full kit including hardware for about $80+s&h or drop the individual part prices, or both. Look at the competition, closest match to this would be "Hobbyking X900 Tricopter Glass Fiber Multi-Rotor Frame" which is $32.16+s&h from the USA warehouse, AND IT INCLUDES ALL HARDWARE + BOOMS.

I really want to support you guys instead, but things like this make it hard.

~psguardian
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mipi April 10, 2013
David, your V2.5 model had longer booms (48cm). Would you use shorter booms also with 3s/DT750 setups or are the shorter arms optimized for 4s system?
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djberna April 10, 2013
Hi all! This is by far one of the best build I´ve seen so far (and I have watched all of them!). One question: How do you cut the carbon fiber sheets? I have never cutted one so no experience here. Any details would be really appreciated
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Drocket21 April 8, 2013
this makes building easy
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CJGFX April 10, 2013
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CJGFX April 10, 2013
David, this is a great beginners guide to building a Tricopter, so things when time allows I'd love to have a try at.
One things I would like to point out in this video, you tell people to rightly use safety glasses around 7:00, but later on we see you putting the Dremel tool down after cutting with out glasses 37:00.
I'm a strong believer in setting and example especially to kids. Safety glasses would cost a few dollars I'm sure with you, eye operation to remove metal filling would cost you a lot more!

Carry on with all your great builds and designs. One of the best shows I've see on the internet for a long time.

CJGFX...
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Da99er April 9, 2013
Awesome stuff! Thanks for doing this...
+1 on the video tutorial on flashing ESCs, and another +1 for a video tutorial on setting up the KK2 :)
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mgrennan April 10, 2013
YES ++1 on the flashing ESCs. PLEASE.
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damekks April 10, 2013
OMG Hobbyking is totally sold out of Parts, are there any "2nd choice" Parts?
Especially for the yaw mechanism, seems they took forever to restock.

Thanks FTTeam!
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edba2000 April 10, 2013
Can I use 2mm balsa to build the camera mount? Is it strong enough?
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damekks April 10, 2013
I dont think so, 2mm Balsa will easily crack on a hard landing =/
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mattplaneflyer April 10, 2013
I found some foam tape on hobbyking. Click Tools then glue/threadlock. It's on the first page.
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RoyBro April 10, 2013
I'm very frustrated with the Hobby King USA Warehouse. I finally ordered the KK2.0 board from the "international warehouse". It shipped, but the notification says it can take up to 45 days to arrive. In the meantime, I can't find the front wheel steering mounts (in stock) to make the yaw mechanism anywhere. This is my first foray into RC, so I also need a TX and RX. Based on Flite Test's review I was planning to get the Turnigy 9x, but of course it is out of stock in the US and will cost $35 to ship from China.
I'm just finding it very difficult to get started. Can someone provide a list of alternate parts that would work for the build?

Thanks,

RB
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wolfpackt99 April 11, 2013
I bought all my stuff for the scratch-built h-quad over a month ago and still nothing has shipped from HobbyKing. Stuff was back-ordered at the time and i guess they wait until it's all in to ship. Now this video. I guess it will be easier to go from quad to tri! I agree with the comments above about the "kit" should be competitive with others. Def. want to buy from you all. Seems like my order is only waiting on the DT750s now.
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disq April 11, 2013
My frame finally arrived a few days ago, and today I had the time to build it. Still have to configure MegaPirateNG etc. (Using a Crius AIO v2 board)

David, in the build it seems like you connected the SBEC power lines of the three ESCs together (on the KK board) is this approach healthy? (considering ESC sbec components, as well as the overall stability of the voltage)
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disq April 12, 2013
Turns out the F-20a and F-30a esc's have linear ubec's, also verified by the 7805 regulators I found inside. So, connecting them together shouldn't be a problem.
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crlock April 12, 2013
Sweet tutorial, thank you very much!!
Quick question though, could you share your aurora 9 setup for the kk2 board? =) please, i want to make sure i have everything set up correctly before the maiden flight (I just build a tricopter as well)
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aidan284 April 12, 2013
Hey David, how long are the bits of fibre glass that you use for the landing gear??
Cheers from New Zealand
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RoyBro April 12, 2013
What we really need is a pre-assembled yaw component. Especially with the difficulty getting the steering mounts.
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RoyBro April 13, 2013
I may have found a source for the Steering Mounts out of Malaysia. Paid too much and the shipping is huge, but I ordered 4 bags. Enough to make six yaw mechanisms. It is yet to be seen if these are really the right parts, but I'm hopeful.

After I placed the order I was asking myself why I'm paying $33.00 for something that should have only cost $2.59 plus shipping. My answer... I'm desperate.
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RoyBro April 29, 2013
The front wheel steering mounts arrived today. I was concerned that they weren't the same as those from Hobby King. They fit together perfectly. Of course they arrive the day after the mounts become at Hobby King again.
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RoyBro April 14, 2013
Is the digital aspect of the servo important? Will an analog servo suffice if the torque matches?

If not, please explain.
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shummi April 11, 2013
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danielmann April 13, 2013
can anyone recommend a substitute/replacement for the dt750's they are out of stock everywhere
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RoyBro April 15, 2013
As are the dt700's now.
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RoyBro April 18, 2013
The dt700 is in stock at the Hobby King USA warehouse. I just ordered a set (3).
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hbelanger April 14, 2013
Hi I'm planning my first tricopter build an was wondering if you can help here is my setup:

Quantity Product description
1 Hobbyking i86L Multi-Rotor Control Board..
3 Turnigy Mini-Swift Replacement Brushless..
3 Hobbyking SS Series 8-10A ESC
1 Turnigy MG90S Metal Gear Servo
1 Turnigy 6X FHSS 2.4ghz Transmitter and Receiver
2 Turnigy nano-tech 2200mah 3S 35~70C Lipo..
1 XT60 to 3 X 3.5mm bullet Multistar ESC P..

What do you think ?
What kind of props should I get ?

Thanks for the awesome site you gave me the desire to fly again

Hugues

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psguardian April 15, 2013
The Turnigy mini-swift motor, info from the mini-swift product page, shows to be a 2s lipo motor with a max current draw of 6a with a 5.1x3x1 prop. It is designed for a 600mm WS park foamie, maybe 300-400gr AUW. You cannot run these on 3s or they will likely burn out with a quickness. Now IF you ran them on 2s with 5x3 props they wouldn't burn up, but they wouldn't lift this tricopter either.

Everything on your list looks good, but for the motors/ESCs.

~psguardian
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hbelanger April 16, 2013
Thanks for the info I will take your advice and change my order.

I've started building a couple for frames based on your layout
see --> http://www.rcgroups.com/forums/showthread.php?t=1597410

I'm also contemplating building a few DVD-Rom based motors just to see what kind of power I can get out of them I love to thinker ...!

See --> https://plus.google.com/photos/106651899791066404508/albums/5867471266935120737?authkey=CPvUueTn-N6zmAE

I'll send you more info on the build if you are interested...!

Thanks again
Hugues Belanger --> http://hbelanger1968.wordpress.com/
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RCmaniac April 15, 2013
Will 11x4.7 props work? please answer!!! Thanks!
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psguardian April 15, 2013
Depends on the motor & voltage you plan to spin them with. The DT700/DT750 product pages specifically list the 11x4.7 as the top prop for thrust on 3s lipo I believe.

~psguardian
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RCmaniac April 16, 2013
I plan to use a 3s setup on the dt750's. So it will be ok right? Thanks for the reply!
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Mauritsfpv December 14, 2013
on 3s they will work fine. on 4s it is a bit too much i guess
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RCmaniac April 16, 2013
Will the dt700's work?
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cmavr8 January 21, 2014
Yep, see my other comments. Less power but still OK
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gnarbot3000 April 17, 2013
With no RC experience in the past 15 years I'm embarking on this build. Below is my parts list based on the current HK available stock along with enough cables and connectors to make the backordered cable components. I'm sure I'll have extra components and need additional parts but this should be enough to get well into the project. Just need to come up with a rotating motor mount or hope the flitetest designed ones become available. Looks like the total cost will come in around $500 having absolutely nothing on hand.

1 Hobbyking KK2.0 Multi-rotor LCD Flight Control Board
2 10CM Male to Male Servo Lead (JR) 26AWG (10pcs/set)
2 Turnigy 3000mAh 4S 20C Lipo Pack
1 Scorpion Lipoly Lock Strap 205mm (Small) x 3
1 20CM Male to Male Servo Lead (JR) 26AWG (10pcs/set)
6 PolyMax 3.5mm Gold Connectors 10 PAIRS (20PC)
3 hexTronik DT900 Brushless Outrunner 900kv
3 Hobby King 30A ESC 3A UBEC
1 Turnigy 380MAX Micro Servo (Metal Gear) 4.1kg / .16sec / 17.4g
3 SF E-Prop 9x4.7 / 229x119.5mm w/ Adapters Black (5pcs/bag)
1 Nylon XT60 Connectors Male/Female (5 pairs) GENUINE
3 Turnigy Pure-Silicone Wire 14AWG (1mtr) RED
3 Turnigy Pure-Silicone Wire 14AWG (1mtr) BLACK
3 Turnigy Pure-Silicone Wire 16AWG (1mtr) BLACK
3 Turnigy Pure-Silicone Wire 16AWG (1mtr) Red
1 Turnigy Heat Shrink Tube 100mm RED (1mtr)
1 Turnigy Heat Shrink Tube 14mm BLACK (1mtr)
3 Turnigy Pure-Silicone Wire 12AWG (1mtr) RED
3 Turnigy Pure-Silicone Wire 12AWG (1mtr) BLACK
1 Turnigy 9XR Transmitter Mode 2 (No Module)
1 OrangeRX DSMX/DSM2 2.4Ghz Transmitter Module (JR/Turnigy compatible)
1 OrangeRx R620 Spektrum/JR DSM2 Compatible Full Range 6Ch 2.4Ghz Receiver w/Failsafe
1 Turnigy 9XR Safety Protected 11.1v (3s) 2200mAh 1.5C Transmitter Pack
1 IMAX B6-AC Charger/Discharger 1-6 Cells (GENUINE)

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RoyBro April 13, 2013
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hbelanger April 24, 2013
hi all
starting to order my stuff for my first tricopter build and noticed that the dt750 are backordered
so I'm wondering if these would work for me http://www.ebay.com/itm/170784516316
Thanks

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kef April 24, 2013
Recently ordered some parts from hobby king to build this tricopter. Thought I'd share the buddycodes with you:

motor:
http://www.hobbyking.com/buddy.asp?code=89C664C1-EFAD-4DF1-A456-E597CC756E7B

servo:
http://www.hobbyking.com/buddy.asp?code=DF207543-26DF-460E-99DA-8ADD1C79F8FF

mount set:
http://www.hobbyking.com/buddy.asp?code=CAC6B711-A858-4C7D-BD78-6E43339C0236

heat shrink, black:
http://www.hobbyking.com/buddy.asp?code=1A0D1F33-33CB-4DA8-AC73-728FDE374481

heat shrink, transparent:
http://www.hobbyking.com/buddy.asp?code=189CC9EA-99F1-4B79-AC39-2BEFEEA71D61

wire, red:
http://www.hobbyking.com/buddy.asp?code=BD97C937-6E6B-453A-88E0-AEAF83388EFE

wire, black:
http://www.hobbyking.com/buddy.asp?code=25E30D37-31F6-401B-A44B-4484DEEB72FB

servo leads:
http://www.hobbyking.com/buddy.asp?code=D131CF90-4275-49BF-87C8-9FC1B89D9A27

extension leads:
http://www.hobbyking.com/buddy.asp?code=131F5260-B4EA-4E49-BB5C-D63484EB448F

screws, m3:
http://www.hobbyking.com/buddy.asp?code=573B0FB4-633D-43FA-A7C5-08BF5460AE74

hex lock nuts, m3:
http://www.hobbyking.com/buddy.asp?code=3C33467A-8EF6-4C87-A95C-819E40BEA954

battery straps:
http://www.hobbyking.com/buddy.asp?code=79472F15-E0D5-4883-844E-D1409BF6DF4E

3000mAh 4s lipo:
http://www.hobbyking.com/buddy.asp?code=7E18358F-4322-4C4A-9637-2D7CF58CD374

gold connectors:
http://www.hobbyking.com/buddy.asp?code=39F1DB03-17DC-4EB9-B57B-26057EC98F96

wire mesh, black:
http://www.hobbyking.com/buddy.asp?code=C63F1741-4BD0-4653-B571-680720F678AD
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edba2000 April 28, 2013
Since the motors, the servo and the "Front Wheel Steering Arm & Mount Set" are out of stock for a long time, it would be great to have an alternatives list. Thanks!
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Dingo April 29, 2013
what settings do ypu use on the Transmitter, thinking of Dual Rates and Exponential
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cmavr8 April 29, 2013
(Cross posting)

Hi, about the servo, I guess the TGY-306G will also do, right?

TGY-306G Ultra Fast/High Torque MG Digital Alloy Cased Servo 3kg / .06sec / 21g

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=22687

Also, any alternative motors? Can't find the DT750's on HK... (out of stock).

Thanks,
Chris
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cmavr8 April 29, 2013
For example, if the DT700 is used, will the power decrease be significant? Like 5% or 20%?
Has anyone tried those?

http://www.hobbyking.com/hobbyking/store/__6246__hexTronik_DT700_Brushless_Outrunner_700kv.html

Thanks
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cmavr8 April 30, 2013
What prop should be used with the DT700 to provide the same power as the DT750s with 9x4.7 props?
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cmavr8 January 21, 2014
Replying to myself once again (after having tried stuff), the turnigy servo I suggested worked for a while but died soon after. I then changed to the recommended bluebird which has lasted months and months and still feels like new when turned by hand (with power off) :)

Amazing servo. Well worth the money. Don't try getting away with cheaper ones as you'll pay for the difference anyway
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UMFLYER13 April 29, 2013
Hi! Im still a bit new to this Hobby, but I am very interested in building a Tri-Copter. I Love the idea of FPV and this would appear to be a great entry into the world of FPV Flying or would you say it isnt. I've heard you guys say this is quite easy to fly. Would you reccommend this for a First time FPV Flyer, as well as first Helicopter flyer seeing how it appears to be rather durable? I had one of those Brookstone Helis and it flew well until it seemed to lose( I guess you could say rudder control) and it would only turn left, then it crashed and never took a charge again. Ive watched all of Davids Videos with the Tri-copter and it is just captivating. I really would Love to be able to be able to do this as well. How much flight expierience do you reccommend before attempting to fly one of these?
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novian89 May 5, 2013
what size for bom..? 1cm thick..?
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RoyBro May 6, 2013
If you mean the booms, 1cm is what David's original tricopters used. This one has 12mm (1/2 inch), as it is difficult to get a 10mm thickness in the US. I know, I tried. The closest I could come was 9.7mm.
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flysomeday May 9, 2013
I might be missing something here, but the tricopter parts list says to use a 4s, which would be ok if using the D4023-850 motor because it specifies you can. However, the DT750 indicates using 3s (11.1V) So, am I just overlooking the obvious?
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cmavr8 May 17, 2013
Yes, I'm also wondering but I guess it works :P
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waaaaaa January 21, 2014
Me too, can anyone shed some light on this please?
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cmavr8 January 21, 2014
Don't worry, I finally built it as is (using DT700 instead of DT750) and it works great!
David knows what he's doing! These motors have huge holes so the are cooled just fine. Barely warm after flying for a full 15 minutes!
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kogashuko May 11, 2013
Will a DT700 work and still lift a gopro?

Also, what is a good alternative servo for this setup? Thanks.
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cmavr8 May 17, 2013
Maybe if you use a bigger prop... Haven't built it yet so can't tell. Be careful though, use a watt meter!
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cmavr8 January 21, 2014
Ok, as I said above I've been using this tri with DT700s for 7 months. It's fine. The power could be a bit more but it flies just fine. I didn't use a gopro but a keychain cam + 500mah 3s. I guess the weight is close to a gopro.

Next time I build one I'll put the 750s just for the extra fun...
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June 1, 2013
David have you ever put a 6s lipo on a Tricopter.
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T May 24, 2013
Hi!
Quick question: where did you get the tilt mechanism? Did you make it yourself? I cant seem to find any mention or list of it.

Many Thanks!
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Sirglider June 5, 2013
The RTF tail mechanism is sold by Flitetest itself. Chad designed it!
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dRCcaptain0722 June 18, 2013
david,
please make a video tutorial on how to flash the ESC by simonK firmware

thanks
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Toddy June 25, 2013
Hi David
Simple question and one that you have probably already had several times but do you have any recommendations for ESC's and motors for 3 cell lipo's??
Just that I already have plenty of 3 cell lipo's
Kind regards
Todd
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yoadrian June 28, 2013
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yoadrian June 28, 2013
http://www.youtube.com/watch?v=5EeZ0x50Hlo

Review of the camera mount
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mrteak July 7, 2013
my maiden flight..

http://www.youtube.com/watch?v=dN_hREv6OIA
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timhg27 July 24, 2013
after a ton of math it costs about 220$ for everything

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timhg27 July 24, 2013
what transmitters do you guys recomend for a knew be coming into this sport i was looking at a FlySky FS-T6 2.4ghz Digital Proportional 6 Channel Transmitter and Receiver System what would you recomend

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Nebulus July 29, 2013
Hello,

Thank you for this amazing work.
That decides me to try the adventure and build a tricopter following your build.
I ordered different parts but where I live, I could not find poplar wood. So I bought fir (after eliminating balsa because it seems too smooth and not hard enough).
I have now some 15mm x 15mm fir's boom of 1 meter long.
Do you think that fir will act like poplar ?
Do I have to cut it 12mm, 10mm or let it 15mm ?

I thank you for your attention,
Neb
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Angeltko August 23, 2013
Hi David newbie here,

I've just started building ver 2.5 setup with 12mm booms and noticed the length is 48cm around , would you recommend 35/37cm booms as ver 2.6 or stick to the 48cm length

BTW Great work Flitetest guys
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learn2fly August 29, 2013
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learn2fly August 29, 2013
Does anyone know how this power setup would work on the BatBone?
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Fly2Film April 9, 2013
Hello David !

Can you say me whats the flight time with this setup ? Thats the only thing what i am missing.
Awsome Build!! I was very slow so no things are in stok at hobbyking now ^^

Thank you very mutch
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tom0905 September 8, 2013
here are some buddycodes for the build! http://rcsearch.info/hobbyking/buddy/?u=tom0905#catalog
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cmavr8 January 21, 2014
I get about 13' fully loaded (fpv) during summer. Winter runtimes are lower.
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kenc3dan October 5, 2013
According to this thread I found, it might not be a great idea to run either motor on 4S, they are really rated for 3S (11.1V), not 4S (14.8V). People do it and get away with it though. 18A ESC seems a little small to me for 4S with this too but I defer to Windestal in all matters. I wonder what David's thoughts on this are.
http://www.rcgroups.com/forums/showthread.php?t=1596480

Here's someone who used the DT750 (not the 700) and a 4S battery with a giant 13x6.5 prop with a 30A ESC. Seems like a bad idea, it's gotta smoke the motor at full throttle after a while.
https://vimeo.com/37288513
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cmavr8 May 17, 2013
Are there people here using the F20A ESCs' BECs?
I mean, with 4s and a digital tail servo, the linear BEC seems like a very bad idea, but has anyone been using it with success?

Thanks,
Chris
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kenc3dan October 5, 2013
4S with those motors seems like a bad idea too. They are rated for 11.1V, not 14.8. And yes, the BEC seems a little puny for this setup too but that's just on paper. David knows his business.
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cmavr8 January 21, 2014
No, after all they work fine! David knows what he's doing... see my other comment here if you want more info
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cetyl26 October 11, 2013
For those wondering: The distance from the end of the rear boom to the first "groove" is roughly 12mm.

I calculated this by way of ratio from Davids video above. I knew the distance between the grooves is 30mm, so using a ruler on the screen and calculator I got 11.6mm... so I rounded up to 12mm for my purposes.

David, what is your original design for the length of most inner groove to the end of the boom? (in your 10mm and 1/2inch boom versions?)
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JendaDH October 25, 2013
Hi David, what is the correct design that you use. There is a difference on the 2.5 PDF design and the tutorial here. Front booms are attached by different screw in different location. I have used the one that is in the PDF (boom linked on the outer screw). Thanks for advice.
Jan
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hele559 December 6, 2013
Is there a receiver used in this??
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mrteak June 20, 2013
what kind of flight times should i expect with this setup?
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Mauritsfpv December 14, 2013
like 10 to 12 minutes, something like that
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cmavr8 January 21, 2014
Without FPV gear I guess 15' is possible. With FPV I get 13' max in the summer. Winter runtime goes dowwwwn
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AndrewP October 24, 2013
I was wondering what people's PID settings are for this tricopter. I have made it, but want better PID settings. However, I have different brand ESCs, motors and board (does this make a difference to PID settings?).
Thanks.
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cmavr8 January 21, 2014
Yes, it makes a whole lot of difference. Also, even if we had the exact same setup, our pid's could differ. So, I won't give you my PIDs (they are not perfect anyways), I'll just suggest that you do proper tuning. All my notes on tuning are gathered here: http://rc.velvetnut.com/index.php?title=Building_David%27s_Tricopter_2.6HV
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F@lcon October 1, 2013
Hi,

this article inspired me to buy 4s battery for my tricopter and now I am a little bit worried about burning my motors or ESCs. I use DT700, Turnigy Plush 18A, 11x4.7 props and 4s Turnigy 3000mAh LiPo. Had anyone tried to run DT700 with 11x4.7 prop and 4s battery? Isn't it too much? Should I rather use smaller props? Specs of DT700 says that nominal voltage for this motor is 11.1V and max prop size is 11x4.7 but for 3s battery.

Thank you very much in advance.
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cmavr8 January 21, 2014
Yes, the props are probably too big. I use DT700's on 4s with 9x4.7 props. It's been very reliable for 7 months. Stick with it :)

Hobbyking's green props are the best. I had lots of trouble with other (cheaper) ones from the same shop but don't waste your time...
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Budge72 July 11, 2013
After you flash the ESCs with SimonK, do you still want to use a BESC programmer card?
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cmavr8 January 21, 2014
No, even if you wanted it doesn't work any more. Simonized ESCs are "optimized" and need no settings (lol)
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jeremykillroy April 2, 2014
how do you keep props on motors that dont have screws but have a solid shaft? plz help and i love your videos! :)
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dadi.sigursveinn April 3, 2014
How much weight do you think this setup can handle, I am planing on making the exact same quad or use the Bat-bone body. Thanks Daði
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Luca April 15, 2014
Great tri David. Its great. Just wondering what settings would be great for the kk2.
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Chamika April 17, 2014
Hi I have this 2.2kg servo at home Corona "929MG Metal Gear Servo 2.2kg" will it be enough for the servo mechanism. Thanks
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beattact April 17, 2014
Hi David,
Is there a possibility that you can send me the Adobe Illustrator file of the frame so I can make a 3d model of the frame? Or just give a link so I can download the file, that would be easier. This way I have the exact dimensions of the frame.
Thanks from The Netherlands!
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