off road non-combat project ideas

[mattsdragons]

hi all

For my course at school, I can build some sort of non-combat robot, but i really cant think of any ideas

all i really want from it is to be able to drive it off road, look visually ok and not cost me an absolute bomb.

can anyone help me think of any ideas?

thanks all
matt

[blazerbotics]

Re: off road non-combat project ideas

My off roader

http://www.youtube.com/watch?v=XOflL6MYpAk

[daliad100]

Re: off road non-combat project ideas

Big wheels and high ground clearance are a must (perhaps borrow St Hammer )

[Anttazz]

Re: off road non-combat project ideas

Does it have to be offroad? If not you could just use your robot and say its for picking stuff up and moving it

[the16henry16]

Re: off road non-combat project ideas

or axe ones u could say to chop tomatos

[mattsdragons]

Re: off road non-combat project ideas

imainly want it off road since there is a massive open green around my house which i could really have some fun at

[typhoon_driver]

Re: off road non-combat project ideas

build a saint type machine with huge wheels powered by wheel chair motors or similar. Couple of electronize and some nimh. Job done.

[Anttazz]

Re: off road non-combat project ideas

Not sure how much they are costing, but I remember seeing somewhere that Shane Swan had a supply of wheelchair motors, wheels speed controllers and possibly batteries (although I may be wrong on the batteries). Eric is using wheelchair motors and controller so it will work and if you don't want it for combat you might get away with using the batteries too.

[the16henry16]

Re: off road non-combat project ideas

i have 3 battreys for sale 2 are 12v ones 4000mah other 4700mah

the other one i think 9.6 v 3300 mah if that helps

[Anttazz]

Re: off road non-combat project ideas

I think you would really struggle with those batteries on wheelchair motors.

[the16henry16]

Re: off road non-combat project ideas

have all three :P

[typhoon_driver]

Re: off road non-combat project ideas

You would probably be ok. Wheelchair motors pull only a few amps when running normally. We have to over rate everything for combat because everything is pushed to it's limit.

[mattsdragons]

Re: off road non-combat project ideas

I could go for overvolted Bosch 400's or 750's but then I would need a big speed controller

[typhoon_driver]

Re: off road non-combat project ideas

and a custom transmission. Why bother over volting? Get some wheel chair motors, run them at their rated voltage and attach some bigger wheels. Job done

[mattsdragons]

Re: off road non-combat project ideas

I guess that's a possible idea but I doubt I would achieve the speed I want unless a go for something like a 2:1 increase