How to make a reverse-mounted motor work properly?

ArduCopter
1

Hi everyone, I’m building a drone that requires the motors to be mounted upside down to give more room on the upper level to mount equipment.

I connected the ESC cable according to the following instructions, but in fact when I unlock and push the throttle, the drone will spin.

I think there’s something wrong with the way I connect the motor, but I don’t know the correct way to connect it.

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PS:When I mount the motor normaly ,everything works fine.

2

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This is my copter

3

If the Propeller directions (when looked from above the vehicle) match the diagram and the ABCD motor order test is correct, it will work. It does not matter if pointing up or down.

4

Actually it doesn’t work properly, here is my solution:
1、set the frame to OctoQuad
2、Only plug in ESC No. 5, 6, 7 and 8 on autopilot.
3、It can work well then

5

The proper way to do it would be

  1. Set frame type to Quad X or Quad H
  2. Connect ESCs
  3. Check motor order and spin direction here
    image
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  4. Swap ESC connections at the FC if the order isn’t correct
  5. Swap two of three motor wires if spin direction ist reversed or reverse it in software (if you have BLHeli_32 ESCs), make sure you swap any prop as well
  6. Recheck motor order and direction if you changed anything
  7. Have fun
6

Come on man, that’s not a solution.

7

I know that, But I have to say it truly worked well. XD

8

That’s the thing with this type of fix, they usually do work. … until they don’t.

Did the other solution work though?