motors

which motors are better :
http://www.ebay.co.uk/itm/190660369831? ... 1438.l2649
or http://www.ebay.co.uk/itm/160777373998? ... 1438.l2649
also are any of these batteries good?
http://www.ebay.co.uk/sch/i.html?_nkw=3 ... m270.l1313
sorry i have so many stupid questions.

2nd link doesn't work.

fixed it

I think the scooter motor will be more powerful but that's just a hunch. Both motors would need gearboxes though, with the scooter motor it would be fairly easy to have a reduction using chain and sprockets but for the Mikita motor you would probably need the matching gearbox. If I was you I would go for the Gimson motors or Argos value £12.50 cordless Drill motors for your first bot, they are very simple to use and ou don't need to worry about gearboxes.

For my first bot I tried to use windscreen wiper motors despite everyone advising otherwise and still haven't managed to finish it due to complications and difficulties only caused by the motors. But I have managed to make 3 robots using drill motors and robochallenge wheels, it's just so simple!

The Makita motor is the more powerfull, smaller, lighter but with a much higher RPM.

The scooter motor is large and heavy, but with the lower RPM easier to work .

Concerning batteries. you can't do much wrong with the vapextech one. But you'll need 2 of'm for the scooter motor, the Makita can work on the 8.4V of the first Vapextech pack.

any links for good drill motors?

are u after 12v or higher

http://www.argos.co.uk/static/Product/p ... 418778.htm

ive used argos ones in my 4x4 robot and they are defiantly cheap and cheerful but for my second robot i found these http://www.ebay.co.uk/itm/BRAND-NEW-GEN ... 35b8213ae2

they work out about the same but you don't get any battery but most people don't use the drill packs and they are better build quality and a bit faster

the seller also has some more expensive and more powerful bare units

thats really helpful but will they power my robot