Part 1 .. DIY Giant Octocopter Build designed for Magnetometer Surveying
Here is my first attempt at building an octocopter. I will post images as I build it.
I built a budget 960mm hexacopter in my spare time last year while working for uranium, copper and gold exploration companies in Africa. I made it out of aluminium and it was a dismal failure and freakin heavy. I am building a giant Octocopter, final design will be 1400cm-1300cm motor to motor .. I can decide later down the road.
My ultimate goal is to create a bussiness where I am contracted to Mining Exploration Companies to fly Magnetometer Surveys ,Lidar and whatever else I can manage to lift safely.
A magnetometer Survey may sound impossible to do "the motors create their own magnetic fields" but I have a lot of experience mounting High End magnetometers "$12000 US each" on everything from a LandRover to 4X4 Quad Bikes. The data is perfect so long as I stick to the rules of collecting Magnetic Data. The distance from sensor remains constant throughout the whole survey, the metal you are wearing and the metal on the quad bike must remain constant throughout the whole survey and the sensor should be as far as feasible from metal or magnetic source.
To be honest if I can do it on a quad bike I can easily do it on a large octocopter. Advantages are the slow speed "or fast", speed dictates how detailed I will survey. Flying 5km taking readings every .2 seconds will yeild very detailed survey data.
The quad bikes survey took 3 months in a desert in Namibia. I had 2 quad bikes, 2 African drivers, 2 magnetometers, 1 base station magnetometer and each quad bike had a spectometer attached to the front.
******************* OFF topic now sorry, back to this build blog*****
I bought 90% of the items from Foxtechfpv "Excellent good fast service and delivery".
I bought CNC items from Infinity Hobby " I like what they sell and will use more of what they offer next time".
I bought my carbon fiber booms and folding arm assembly from brushlessgimbal " I got the parts fast enough but next time I will cut out this middle man"
Part 1 complete .. Next Part 2 .. Parts List