I've been tinkering with a scratch built tri for the past month or so, experimenting with various set ups, power systems, control boards etc.
This is my chronicle on my endeavor.
Why
I wanted to get into doing aerial photography/videography and eventually FPV. A multi rotor is a great platform for both. Why not a quad or a hex, or even a Y6? I liked the general simplicity of the tri and its portability and its initial setup cost. I wasn't sure I would be into it for the long haul and didn't want a big upfront investment. I've learned a lot along the way and thought I would share it here.
Version 1
My thought process was to utilize smaller props, thus generating less vibrations, less rotating mass. I decided to use a 1400kv motor (HobbyKing 2826-10) with the assumption that I could go with an 8" prop and a 3s battery. After much testing with various prop sizes, 8x3.8sf is the best with this power, or a 9x6sf works pretty well with a 2s battery. There are other limiting factors that makes this set up less than ideal
So here is my setup for V1
Frame: 1/2" Aluminum channel / 3mm Lexan
Motor: HK 2826-10 1400kv (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=12920)
ESC: HK 30A RedBrick (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18004)
Controller: HK KK v3 (http://www.hobbyking.com/hobbyking/...i_Rotor_Control_Board_V3_0_Atmega328_PA_.html)
Tail Servo: HK HKSCM12-5 digital 10g servo (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16261)
Battery: Zippy 25c 2200mah 3s (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=7636)
Final model weight - without battery : 724g (1.6lbs)
I will go into detail about the pros and cons of such a set up and what worked and didn't work for me. I will say that none of the initial parts are being used on the final or V3 copter.
Pictures and video to come...
This is my chronicle on my endeavor.
Why
I wanted to get into doing aerial photography/videography and eventually FPV. A multi rotor is a great platform for both. Why not a quad or a hex, or even a Y6? I liked the general simplicity of the tri and its portability and its initial setup cost. I wasn't sure I would be into it for the long haul and didn't want a big upfront investment. I've learned a lot along the way and thought I would share it here.
Version 1
My thought process was to utilize smaller props, thus generating less vibrations, less rotating mass. I decided to use a 1400kv motor (HobbyKing 2826-10) with the assumption that I could go with an 8" prop and a 3s battery. After much testing with various prop sizes, 8x3.8sf is the best with this power, or a 9x6sf works pretty well with a 2s battery. There are other limiting factors that makes this set up less than ideal
So here is my setup for V1
Frame: 1/2" Aluminum channel / 3mm Lexan
Motor: HK 2826-10 1400kv (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=12920)
ESC: HK 30A RedBrick (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18004)
Controller: HK KK v3 (http://www.hobbyking.com/hobbyking/...i_Rotor_Control_Board_V3_0_Atmega328_PA_.html)
Tail Servo: HK HKSCM12-5 digital 10g servo (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16261)
Battery: Zippy 25c 2200mah 3s (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=7636)
Final model weight - without battery : 724g (1.6lbs)
I will go into detail about the pros and cons of such a set up and what worked and didn't work for me. I will say that none of the initial parts are being used on the final or V3 copter.
Pictures and video to come...