You can download the parts for 3D print here :
Video of the first prototype flying (Using Hi-quality but slow speed Futaba micro servos. The performance was limited) :
Parts list :
- ESC - Emax EMX-SC-1774 D-SHOT Bullet Series 30A
- Motor - GEPRC GR1206 4500KV / E-MAX 1106 4500 / E-Max 1306 II B 4000 Kv
- FC - Kakute F4V2
- Battery - 650-1000 mAh
- Prop Guards (optional) - Rakonheli 2.3 Inch Propeller Guard.
- Servo - KST DS215 MG V3
- Receiver - Micro type like X-Boss AC900
- PDB - Matek Systems PDB-XT60 W / BEC 5V＆12V 2
- Plug - XT30 can be used to reduce the mass.
You can use this setup or equivalent performance components.
Recommended propeller - RKH 2222 - (2.2 inch 4 blade) which performed very good on test bench outperforming for example E-max AVAN BABYHAWK 2.3 inch 3 blade propellers in matter of efficiency (consuming much less power while providing the same thrust)
Build Guide
1 - Print out the parts :
2 - Assemble the motor gimbals :
3 - Solder the ESC's and position them on their place in frame cut-outs.
4 -Place PDB on frame and solder ESC's and Battery cable to it.
5 - Put the FC on top of the stack and solder the cabels accorind to schematic.
6 - Connect put the motor gimbals on the frame and place servos in the frame cut-outs. DO NOT FIX THE SERVO HORNS AND SERVOS TO FRAME AT THIS STEP !
7 - Plug in the FC to PC and in Beta flight copy the CLI :
IT APPLIES TO VERSION # Betaflight / KAKUTEF4V2 (KTV2) 3.5.3 Nov 14 2018 / 23:48:36 (61d5abf00) MSP API: 1.40
8 - Adjust the settings to your specyfic configuration.
9 - Plug in the battery and make sure the servos are centered.
10 - Fix the servos in frame and screw the servo horns.
11 - make sure the motor spin direction is correct and the servos works in correct direction.
12 - Fly and have fun.
13 - Show it to others
Video of the second prototype with fast KST servos.