E-RaptorGenexis
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- Introduction
- Tail frame assembly
- Center Main Frame Assembly
- Tail and center frame together
- Servo Frame Assembly
Ever since I’ve gotten my first Thunder Tiger eRaptor E550/620, i’ve always wished that it was 100% carbon fiber or G10, like most of the other 50 size electric helicopters in the market. Not long after i’ve gotten the stock kit, I made some custom CNC G10 lower frames such that I am able to use A123 standing packs. Pictures of this conversion can be found in this site, please browse the archives for them. I was never satisfied with a half upper plastic frame and G10 lower frame heli, but I was never able to find enough time during my University days to design a full frame for the eRaptor. Now that I have just graduated from the National University of Singapore (BEng), I have about 2 months free before I start work. Hence, i’ve deicided to make this long awaited dream come true.
Since this is the first full custom CNC frame for the eRaptor, I decided that I should follow the stock desgin as much as possible. For this first version, what i really wanted is some that works, with all my aileron and elevator levers aligned well, and making sure that the belt system of the stock raptor works well in the new frame. There was little effort made to innovate new placing for electronics such as servos, receivers, etc. However, now that the version 1 of this design has proven to work very well, I’m now more motivated to make more changes to the frame to reduce weight, improve electronics arrangement and better swash-to-servo control.
I designed the frame using Solidworks, converted into G-code using MasterCam and CNC milled the frames out using my Sherline 5410 CNC converted table mill. The frames are designed to use 2mm G10 or carbon fibre sheets. Other than parts from Thunder Tiger’s Raptor E550/620, I took parts from many other RC helicopters such as TZ-frenzy, Align 600E, Rave 450 and others. I’ll highlight them again during the build.
This is is all that is needed for this build. As you may notice, the center 3 pieces belong to the previous design of A123 compatible lower frames. They have thicker walls as compared to the upper frames.
Initially, i wanted to spray a light coat of black paint with silver square patterns to cover up the natural green colour of the G10 sheets, but I didn’t have the spray paints with me, and I was getting really excited about starting the build, so… heck it 
