CPO Custom 135° Tricopter Build Page
The Original : FPV Smoothness
The G10 Shorty : Aerobatic Fun-ness
HEY YOU! Are you building a CPO 135 Tricopter?
This page is the collective reference for all of my work relating to my custom 135° tricopter design and build. Additionally, the templates I created during this build are available for download. Let’s get started!
First, here are the templates. NOTICE: These templates are provided free of charge for people who desire to build the CPO Tricopter, or a personal derivative of this design. However, these plans and designs are not authorized for commercial or for-profit use. Please provide proper attribution when using this design, and it is identified as the “CPO 135 Tricopter”.
This work is licensed under a
Alright…let’s get to the good stuff! Here is all the content related to my CPO 135 Tricopter build. Most recent stuff is up top. If you want to go through the entire process in a systematic fashion, start at the bottom and work your way up. I start out with my design concept, and go into some tricopter design theory…then start the build. There are now two versions of the CPO 135 Tricopter. One is “The Original” which is a large FPV focused machine. Because of it’s size, it is very smooth and stable…perfect for FPV. Don’t worry, it’s lots of fun, and can be flown hard. The latest version, however, is more of the race car. It’s called the “G10 Shorty”. I am using laser cut G10 body panels on this build, but the original wood is just fine. The booms are 150mm shorter than what I call for in the original build plans. I am also cranking up the stick scaling and other awesomeness in the KK2.1 to push it to its full potential. This is a great version for those that want to play. I left the camera tray off for now, but the same method can be used to put a camera on it as used in the original. Enjoy!
ReadyMadeRC 5.8GHz FPV CPO 135 Tricopter TestNovember 20, 2014
Futaba T8J Giveaway :: It’s Official! Register to Win!October 28, 2014
This video is the official giveaway registration video! To say thanks to all of my subscribers — those who are brand new, and those who have been with me from the start — I am giving away a Futaba T8J Transmitter...
[USER-SUBMITTED] Shorty with Naze 32 FC, Multistar 1200kv, Afro ESCJuly 3, 2014
We have another user-submitted post showing off a CPO-135-Tricopter build. Jack Newman is sharing his build. It looks really nice, Jack! Love the paint scheme! It looks good with those G-10 panels!
Works really well with this FC. Snappy, quick, well...
Tarot T-2D Gimbal Tip : Got the Shakes? Here’s a SolutionJuly 3, 2014
Thanks for watching this video. I stayed up til 2AM one night trying to figure out why my Tarot T-2D GoPro gimbal was acting all crazy. I tried updating the motor and sensor firmware. I set the motor pole count. I...
CPO 135° Tricopter G-10 Body Panels!March 14, 2014
Looky! Looky! Look what came in the mail today!
One of the great guys that’s been active on my thread on RC Groups (CPO’s Officially Unofficial Tricopter Build :: Step by Step Scratch Build How-To) has gone and laser-cut some G-10...
Want to add your own CPO 135° Tricopter build photos and story?February 24, 2014
Basic FrSky Taranis Telemetry : A1 and A2 Voltage and Telemetry ScreensFebruary 17, 2014
In this video, I go over the basics of setting up analog voltage telemetry on the Taranis using OpenTX. I am using a FrSky D8R-II Plus receiver and a FrSky FBVS-01 voltage sensor. I go through the basic setup to use...
CPO’s First Sunrise with the New Tricopter and GoPro!February 14, 2014
More on Tricopter Center of Gravity, and a Test FlightFebruary 13, 2014
Okay….test flight #2 with the camera. However, this video is less about the camera, and more about center of gravity. FWIW, the camera footage is rock solid!
So, back to center of gravity. I talk a little bit about center of gravity...
First Test of CPO’s Vibration Dampening Camera TrayFebruary 12, 2014
So, I’m pretty excited to report that my idea for a simple tricopter vibration dampening camera tray design looks to be working great. Probably the most unknown part of my build (as in the part that I haven’t completely worked out...
Flying in Self Level on Default KK2.1 Steveis V1.11S2 FirmwareFebruary 9, 2014
Took the tricopter out for a quick recorded flight. All settings are still stock. No tuning. I am very pleased with how easy this thing flies right from the get go. I am sure will a little tuning, it will be...
Maiden Flight, Gremlins, Rabbit Trails, and a Re-MaidenFebruary 8, 2014
So this didn’t go down exactly how I planned. I still have some maiden flight footage to work on, but I sorta fast-forwarded to problem resolution. While I will consider my maiden flight a success, I wasn’t totally out of the...
CPO Tricopter Build : Basic TX Setup, ESC/AAC Calibration, Arming/DisarmingFebruary 7, 2014
In this video, I go over the basic transmitter and KK2.1 programming and calibration. These are the fundamental settings that are needed to get the tricopter ready for maiden. My transmitter is a FrSky Taranis, but hopefully the principals in basic...
CPO Tricopter Build : In-Depth Look at Prop Blade and Hub BalancingJanuary 12, 2014
It may be ironic that one of the longest videos I have made in a while is on a topic that most people just assume is understood and put into practice. I’m often amazed, however, how many new RC builders
CPO Tricopter Build : KK2.1 Install and Wiring the RX ESCs UBEC and Tail ServoJanuary 12, 2014
This video covers the actual physical installation of the KK2.1 Flight Controller Board onto the tricopter. I believe I have come up with a creative and useful way to attach the board that offers vibration isolation, protection, and security.
CPO Tricopter Build : Flash KK2.1 Firmware in Mac OSX and Windows using USBaspJanuary 5, 2014
In this video, I go through the process of updating my KK2.1 FC Board to the latest firmware (released by Steveis). I performed my update using a Mac, but I realize many folks are using Windows and could use
CPO Tricopter Build : Testing Electronics, Motor Direction, and Fixing Servo BuzzJanuary 4, 2014
In this video, I show you the process I used to test my ESCs, motors, and servo before introducing the KK2.1 board to the build. I wanted to make sure that everything was working as expected before adding the flight
CPO Tricopter Build : Prototyping, Assembly, and Vibration Dampening Camera TrayJanuary 3, 2014
NOTE! I later found that my ESCs were overheating when mounted inside the body panels. I ended up moving them to the arms, and have no problems now. Be warned. It could just be a problem with my ESCs, but I...
CPO Tricopter Build : Wiring Harness – Battery to ESCs and BECJanuary 2, 2014
This video shows how I built my wiring harness for my tricopter. I also had to add in a pigtail for wiring in an external BEC. These types of harnesses can be bought pre-made for tricopters, quadcopters, etc…but making
CPO Tricopter Build : Cutting Booms and Mounting Props and MotorsDecember 31, 2013
In this video, I take you along as I cut the three booms and the front spacer for the body. I then drill out the mounting holes on the booms. Then, I go over my prop selection (and directions)
CPO Tricopter Build : Yaw Mechanism (Rear Motor Tilt)December 29, 2013
In this video, I complete the yaw tilting mechanism for the tricopter build. I mostly followed the instructions provided by David Windestål on his tricopter build, with a few deviations. I used a slightly different (but very similar) way to
CPO Tricopter Build : Introduction and Parts OverviewDecember 23, 2013
I decided to kick of my multirotor build, and if you have been keeping up, you know I have picked the tricopter as my aircraft of choice (for now). Nothing against the quads…I am sure I’ll build one of
CPO Symmetrical Tricopter and T-Copter Design Theory and Defining Optimum Center of Gravity LocationDecember 18, 2013
In this video, I discuss what I have learned with regard to basic symmetrical tricopter and t-copter design. I show how the tricopter and the t-copter are the same from the flight controller’s perspective, and from the perspective of a
CPO Quick Look : Tricopter 3D Modeling to Design Around GoPro FOVDecember 14, 2013
In this video, I show you the 3D modeling I have been working on with regard to my tricopter build process. I decided to build the copter around the GoPro camera’s standard field of view (120° x 90°) since