The basic idea

I’ve been planning on making a CineWhoop fora long time now, but so far, I’d always stuck to 5-inch builds. Eventually, an opportunity presented itself in the guise of a new GepRC product, and I decided to take the plunge.

All in all, it turned out to be a tricky, yet rewarding build.

Important pre-build info

• A GepRC CineLog 35 frame comes with a 26.5mm x 26.5mm mounting pattern. This is very important to note, as not all AIO boards come with this pattern (most come with the 25.5mm x 25.5mm pattern). Hence, it’s important to make sure you have the right board for the job.

• If the cinewhoop build will carry a GoPro Hero 9 or a larger action cam, go with the larger 2004 size motors (like I’ve done in this build).

• If, like mine, you intend to build a 6S version, make sure you use the battery pigtail wire that comes with the frame and not the one that comes with the FC, as the pigtail that comes with the frame already has a capacitor soldered to it.

• I mounted the AIO board upside down, and the board has its default front side 45 degrees to the right of the front side (edge of the board instead of the usual side - See the arrow)
  

• This meant that I had to make a couple of changes in BetaFlight to compensate for the FC alignment.
  

• Motor alignment also needed to be changed to make sure that each motor is mapped correctly on Betaflight (M1 switched with M3, M2 switched with M4):

  DEFAULT CONFIG
  resource MOTOR 1 C09
  resource MOTOR 2 C08
  resource MOTOR 3 C07
  resource MOTOR 4 C06

  NEW CONFIG
  resource MOTOR 1 C07
  resource MOTOR 2 C06
  resource MOTOR 3 C09
  resource MOTOR 4 C08

• Ensure that the cables connecting the flight controller with the Vista and the RX are as long as possible. this will make opening up the build easier in the future, if required.

• The order of the build is very important here as everything becomes easy if you do them in the right way. The best sequence will be:
  • Assemble the frame
  • Solder wires to the RX
  • Solder wires to the Vista
  • Insert battery strap
  • Install AIO board
  • Install Vista
  • Solder RX wires to the FC
  • Install RX into the frame
  • Temporarily install motors without guard
  • Solder motor wires to FC
  • Unscrew motors and install prop guard
  • Install the antennas for Vista and RX