4, 6 or 8 arms for the Y-Copter
8 arms directly from the centerplate, using the lower level of the multicopter as battery power, wouldn’t work. Therefore, a new idea was in place: the construction of a Y-Copter, which would then be universally applicable, as Y-Quadcopter, Y-Hexacopter or even as Y-Octocopter. Only with the Y-design it is possible to create more space on the centerplate.
Several prototypes of the octocopter were necessary
After the CAD design of the Octocopter, the CNC milling machine was fed with the data of the first design, but this could be improved. However, already the second prototype was absolutely usable and convinced not only by its light weight. A complete Y-outrigger for 2 engines now weighs just 140 grams!
Drilling – Milling – Assembling
Then it went to mill all model parts for the octocopter. And these are not few. Milling and drilling the fixing holes for the Roxxy motors. Drilling a few holes for the plastic holders for the cable guides, which are also custom-built with the CNC milling machine, motor plate, center plate, dome and stabilizers, basic plate for the main outrigger and side milling.
Plastic parts for the copter
Not only were all aluminum parts made of 1.5mm aluminum sheet with the CNC machine. In addition, there are parts made of POM, a wear-resistant plastic. The mounting brackets of the outboards and the cable holders as well as the brackets for the signal transmitter should be mentioned here.
Mounting transmitter / receiver and electronics
Of course, the installation also includes the installation of all electronic components, the motors as well as the installation, soldering of all cables, etc. The test flight is to be carried out with a JETI / MX16 and a Jeti-RMK2 receiver. Quick test of all motors on rotary direction. Then the Octocopter looks absolutely usable.
Remote Control modify with holders for displays
Our CNC machine customer has also not refused to modify its Graupner MX-16 radio remote control. It was necessary to keep an additional display and a transmitter always in sight. Soon suitable holder was designed and milled of aluminum . All important data are now always in the focus of the multicopter pilot.
A camera gimbal for the DSLR
In the end there was also a suitable low weight Gimbal for the used DSLR. Of course, it was constructed in the same proved lightweight construction as the rest of the entire copter. Get on the milling machine with the raw material! The result is just as perfect as the copter itself.
Maybe we will get some more pictures from the entire system and a video of the launch and flight of the giants. We would be delighted.
The entire report can be found on www2.echtcool.net