Deathly Hallows

OK so my plan is as follows:

1 - build a powered chasis. To make sure the Transmitter and bits work and I have at least some basic competency
2 - build a feather weight and perhaps a beetle weight as seems to be lots of events for those
3 - compete win/lose
4 - while not confident and not rich go to 2
5 - Build a a heavy weight and win robot wars

Doing 1 through 3 will do me just fine for now.

I think the basic shape will be a wedge in each case. I know its a bit dull but it's simple and seems effective. Weapons I am keen to do something with a chain or circular saw. I know the issue is ensuring pressure is applied to force the weapon into the other bot or vice a versa, but I have an idea or two.