Designing my first robot - Advice Needed

[shakesc]

1) What should I do to for the lifter? Should I use the RB-775 or are there alternatives that would be better? If I stick with the RB-775, does it need the second gearbox and what should I do/avoid when designing that or is the Saturn-16 enough?

For a flipper the Saturn's should be fine. No second gearbox. Aim for around 100mm diameter wheels
Looking at the design they seem much smaller which effectively gears down the motor meaning your bot will be slower

2) What batteries and receiver should I use and where do I get them?

Optipower or HobbyKing. You should go for LiPo but you will need a LiPo charger and dont forget the LiPo bag when charging
Probably a 2200mA 5 cell should be ok, maybe push up to 3000mAh - I'm sure there will be lots of opinions

The Botbitz have a BEC in them so no separate battery for the receiver


3) Is there anything I have missed or could improve so far? This is my first engineering project so any advice will be helpful

Electric flippers are more like electric lifters. You wont get the explosive speed that CO2 gives

Read the build diaries carefully!