In other words when I saw those FPV videos on Youtube I was so fascinated that I decided that one day I would get to that point too.
And now, after almost two years of fiddling around with planes first, and helis after, I feel I am almost there!
Recently I managed to put my hands on a second hand FpvManuals Tricopter kit, built by Tim Nilson in the US but mostly designed by David Windestål in Sweden.
I chose this kit because...well I found it here, second hand, and cheap, its design is brilliant, making for a really good start in the multirotor world.
For reference images of the build of the frame itself I will send you to either Tim's or David's build logs, which both described the process in great detail. What I want to focus on in this article is how to wire all the electronics, connect the plugs and basically transform an inanimate kit into something that flies...and sees!
This is mainly because coming from a plane and heli background I had no idea of how to approach a multi.
But here we go!
|The KK board with some of the connections already done|
The picture above shows how I decided to connect it to the receiver, a simple orange 6ch: the board has all the signal pins towards its inside, and it needs to transfer the power coming from the BECs to the rx, to do so only one pair of wires is sufficient.
You can see I run a "male to male" servo wire that connects all the signal pins from the rx to the board, and another one which connects the fourth channel and powers the rx.
In specific I found it easier to power the throttle, ailerons and elevator channels with a single "male to male" wire, and to connect the rudder one as one would normally do. This is because of the position of these channels on both the board and the rx.
The wires that exit the board on the right are going to the rudder servo, and on this particular board it needs to be plugged where the fourth motor of a quad would be. Apparently this is firmware dependent, so please check which version you have and follow the instructions.
|ESCs, motors and propellers|
I am using 3x 18A Turnigy plush ESCs, 3x 2213N 800kv motors and some 1045 propellers, CW and CCW rotating, to keep the tricopter as flat as possible, as I will use a camera on it.
|Preparing the motors|
|The power harness|
Above is a picture of the power harness. What this thing does is to split the power from the battery and direct it to the ESCs. In this case three. This is a harness I built myself, but I am pretty sure there are ready made solutions.
|All is in place, time to plug the connectors and program the radio|