|Oct 09, 2011, 04:10 PM|
Flexacopter ---The Making Of---
New project for a Heavy-Lifter camera platform.
The objective are,
Multiple system use, such as, Mikrokopter with the V2.0 ESC's / OpenPilot / KKuk / and others.
Hexa setup, + and X mode.
5S setup with one 8000mAh lipo for long efficient flights.
Easy removable 20mm carbon arms with integrated power and led plugs for easy transportation in a custom case with foam padding.
Carbon 180mm frame and carbon supports for the Avroto 2814 short shaft motors.
Compact Wire Rope Isolators (diy) + gel dampers for max vibration damping.
Diy roll/tilt gimbal (AV-200 look alike).
Dimensions test for the MK V2.0 ESC's mounting holes,
Production of the Avroto supports in 2,5mm carbon,
First test model of a diy Compact Wire Rope Isolator, tests show a vibration reduction of 70% with 500g load,
|Oct 09, 2011, 10:08 PM|
|Oct 09, 2011, 10:26 PM|
|Oct 10, 2011, 02:13 AM|
Joined Mar 2004
Nice, it look like you are using logo tail boom mounts.
I did not understand clearly what is this for "Compact Wire Rope Isolator" where does it used.
keep update your process please.
|Oct 10, 2011, 02:49 AM|
Thanks Guys for the nice responses
This project is in real time, so where it will bring us is like looking in a crystal ball
There is a lot going on in our heads and we can promise you guys that this will be a great looking hexacopter, build with the best materials we can find and diy solutions never seen.
Pieter Jan & Mario
|Oct 10, 2011, 12:27 PM|
|Oct 11, 2011, 04:20 AM|
To estimate the power and efficiency of the Avroto M2814 motors I did some testing on 5S with an Graupner E-11x5 prop.
The test I did was with an 15x15 square alum tube, so the numbers will be a little negatief because round tubes are more efficient
(less bouncing back from the prop down wash), because of this there will also be less vibrations coming from the booms.
The Flexacopter flying weight without camera bud with an 5S 8000mAh lipo will be +/- 3100g divided by six = 517g for each motor
with an extra payload of 1500g (heavy DSLR) the numbers for each motor will be 767g.
So the numbers we are looking for are, 517g and 767g
From 87 > 98 sec at the time line you can see the 500g test and the red line indicate that we are pulling 3A multiplied by six = 18A total with 3000g flying weight.
From 137 > 145 sec at the time line you can see the 800g test and the red line indicate that we are pulling 5,8A multiplied by six = 34,8A total with 4500g flying weight.
80% from the 8000mAh lipo give 6,4Ah usable energy, this will give a flying time of 6,4÷18=0,35h 0,35x60=21min flying time with 3000g.
6,4÷34,8=0,18h 0,18x60=10,8min flying time with 4500g.
Not important bud nice to know is that the total lift power of the six Avroto's is 13,8Kg (3200W!!), so plenty of headroom.
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