I recently got a PX4FMU plus PX4IO board kit and I am installing it on my little DJI Flamewheel F330 that I had been using previously with my APM 2.
The F330 is a perfect candidate for this because it is an excellent and sturdy test bed.
It flew very well with my APM 2.
Previously I was using An Oring suspension mount on the 4 standoffs you can see in the photo above.
This time I decided to try mounting the PX4 stack on a thin fiberglass plate plate which is mounted on some 1/2" pads of Kyosho Zeal anti vibration gel.
The PX4 stack is already pretty high so I thought I'd try this before using both the Zeal and the O-ring mount I had planned.
The Zeal Gel which comes with double sided tape on both sides is almost a quarter inch thick and it seems appropriately flexible and vibration absorbent in this application with the four 1/2" square pads.
The Accel readings will tell the tale.
Note that the inter board connector on the left is about 2mm shy of closing.
3DR supplies 8mm M3 standoffs and I think that 6 mm ones would work better, although their would be a slight interference fit at the other end of the board.
Notice all the stuff still hanging off of it.
The GPS, the arming switch, the buzzer and the battery power leads for the PX4's built in power supply.
Still have to figure out where to stick all this stuff on my little Flamewheel.
I have already installed the firmware and bench tested this PX4FMU plus PX4IO stack.
The PX4 stack is upside down from normal spec, but it makes the connectors easier to get at and it is easy to do with the new Mission Planner adjustable Board Orientation parameter.
I will also be attempting to use one of the little 3DR Receiver servo to PPM-Sum out converters, so this promises to be an interesting adventure.
I will keep everybody posted and new pics as this build - test continues.
Please feel free to post comments and questions.