Here's the picture of their undersides, I threw in an R710 on the left (the rest are R620s).

You can see the blown track in the centre near the pin headers on both R620s. It may also be wroth noting that the bottoms are almost identical, same parts, same idents just the R710 has more board area.

I'm not too sure what to do now. I need to mix 2 channels to control the motors and thus the movement but the Dx5i mixes so that left to right are forwards and backwards which is unworkable. I could shell out £10 for a new GWS Mixer or £10 for a Trinket micro-controller with a custom mixer firmware or buy a much more intelligent TX which can do it internally. I'm planning on getting into quadcopters so I will need a more intelligent TX eventually, but its a lot to ask for right now.

The rest of the robot wise:
  • front arm of the lifter is now milled out of a solid block of aluminium, it's awesome!
  • LED 'bling' is programmed, waiting on a mini micro-controller to run it as well as fitting it
  • I have some anti-spark XT-90-S connectors and am awaiting a Midi Fuse & holder to see how it could replace my Maxifuse arrangement. This will stop arcing/sparking.
  • I'm looking into my over complicated electronic fuse to see if it's a terrible idea or just a weird one.
  • I still need to grind down the front lip of the robot so it's thinner.
  • I need to ship the Hardox parts off for powder coating
  • I need to fight in a competition


Nearly there...