Getting started with electrics

[leorcc]

Hi Ryan and Colin,

Do I need a separate battery for each motor drive?

No, you can use 1 battery and have both speed controllers feed off that. The motors get their power from the speed controllers.

What to use for a removeable link, I was thinking of a 30A flat car fuse - would that work?

Provided to motors don't draw as much current yes, but I would use a fuse more suited to the battery you intend to use. I normally do not use a fuse as a link, but a RC connector in a loop between the battery plug and the ESC's. A EC3 or EC5 connector or Deans Ultra are very good for those.

The components that I think we need - 5 cell LiPo battery for 18 volt

That is not a bad choice provided your motors and speed controllers can handle it.

2 X drive motors

18V Drillmotors or Banebots gearmotors are very usable.

Speed controller

1 or 2, depending on the type. Two of the Botbitz TZ85a ESC's are very nice for featherweight drives, and not a big assault on the wallet.

Removeable Link + LED

Correct

Receiver + battery

The receiver can get its power from the TZ85a, so it does not need its own battery.

I'd say your shopping list is pretty much complete apart from a frame and armour of course.

Good luck and happy building.

Attached a wiring diagram for a 2 ESC layout wit link and fuse (mandatory for Lipo).

dual esc setup diagram.jpg