The first generation of my 3D Printed Dualcopter was not the best. It was flying. Somehow. Poorly. Crashed. But for a moment it was flying alright.
I'm slowly designing the second generation of Dualcopter. This time smaller in scale since instead of 10-inch propellers, it will be using 5-inch ones. And smaller 2205 motors. And some carbon fiber to support 3D printed elements and hopefully give it a little more structural strength.
The general idea is as follows:
"Structure" will be provided by two vertical carbon pipes
Motors and propellers will be in a duct. Not EDF, but almost. The idea is not to get more efficiency but to guide the air to the control surfaces. The goal is to have some control during descend too. Version without duct had none
Upper motor will be 2205 2300KV with 5×3 3 bladed propeller
Lower motor will be 2205 2600KV with 4×4 3 bladed propeller
Lower prop will be working in the already accelerated air so it needs more pitch speed. More RPM and higher pitch = higher pitch speed
4S battery on top to move the center of gravity far from control surfaces to give them plenty of torque
2 9g servos
flight controller running INAV
And that is more or less all… Will it work better than the previous one? I hope so 🙂
It took me some time to finish this project. Almost two years. But my 3D printed dualcopter is done. It flew, it crashed, it is not more. But do not worry, it’s not the end. The second generation of 3D printed dualcopter is on its way
It's been exactly one year since my last update on Project Dualcopter. On 20th of October 2016 I've posted that there was a progress. Now, 12 months later, I once gain report, that there was a progress…. That was slow….
I've finally installed control surfaces and servos
I've finally decided where LiPo will go: to the top of the whole stack. I want CoG as far from control surfaces as possible. They will not generate much force, so I need as much torque as possible. So, long lever FTW
My daughter called it Flying Bucket. Makes sense, right?
Flying season 2016 is slowly coming to an end on northern hemisphere. That means less time spent on an airfield and more time spent behind a desk. For this autumn I've found a very interesting, small project: Dualcopter.
Dualcopter is an UAV with two coaxial contra-rotating propellers and 2 control surfaces driven by servos. Lift and yaw are controlled by propellers, while pitch and roll by ailerons placed below motors. This video illustrates how it looks like:
My Dualcopter will be slightly different. Instead of foam and wood I will use 3D printed parts connected together CA glue and zip ties. Maybe it will not be super strong and probably will not survive any crash, but should be enough to make it fly for a minute or so. Almost all parts would be either 3D printed or taken from spare box. I'm not planning any new purchases.
Motors: Turnigy MT2213 935KV
Props: APC 1045 MR
ESC: Afro 20A
FC: Flip32 probably with INAV inside
Battery: 1300mAh 3S
Weight: around 800g with battery
So far, after 2 evenings I have this:
Two motors mounted on a frame.
Next step would be to build bottom section with ailerons and battery compartment.
Hey, don't leave yet, there is more!
Do you know that there is a YouTube channel with awesome, drone and FPV related video? Why don't you give it a try?