Team Avenger build diary

[mattsdragons]

Re: Team Avenger build diary

That's all I can do really, I'm not going to try and get lev 2 running for kidderminster though

[TEAM ENIGMA]

Re: Team Avenger build diary

ok, so seeing as Matt isn't able to, I've uploaded a couple of pics of his robots.

[Anttazz]

Re: Team Avenger build diary

Nice, looks like a good couple of machines you have to play with. I'm really starting to like flipping stuff around too .

[mattsdragons]

Re: Team Avenger build diary

Well one dont work and one kind of works

[Anttazz]

Re: Team Avenger build diary

I have 4 that don't work and 1 that kind of works

[mattsdragons]

Re: Team Avenger build diary

I need one to be working in a month and it seems impossible

[Anttazz]

Re: Team Avenger build diary

The only problem is that it turns a bit strangely when you want it to go straight? Impossible seems a bit dramatic for that

[mattsdragons]

Re: Team Avenger build diary

I have tried many things, and get my actuator working

[psychostorm]

Re: Team Avenger build diary

Matt, you can see that those wheels aren't parallel, can't you?

Your problem is probably less to do with motor speeds & more to do with the fact that the wheels are fighting against each other.

[mattsdragons]

Re: Team Avenger build diary

Dodgy picture angle ceri, the wheels are level

[psychostorm]

Re: Team Avenger build diary

Dodgy picture angle ceri, the wheels are level

Can't be, it isn't parallel with the paving slab it's sitting on -Top wheel is, bottom wheel isn't. Either your wheels aren't or the slab isn't square.

[mattsdragons]

Re: Team Avenger build diary

On closer looking, it does appear slightly off yet explain why it goes to the right?

[TEAM ENIGMA]

Re: Team Avenger build diary

Apart from the wheels, looks good. Hopefully you should be able to get it running in a straight line if you move one of the wheels and motors round slightly

[mattsdragons]

Re: Team Avenger build diary

funny thing is its fine in reverse

[psychostorm]

Re: Team Avenger build diary

I can explain that:
Tank steering works on the principle of two drives equally parallel & exerting equal forces.

Your right wheel is angled inward which means the robot pushing into a counter clockwise spin & being the dominant force, is drifting the robot right. Your left wheel skids.

When the robot reverses, the right wheel is angled outwards & is the weaker force of the wheels. Right wheel skids & the bot generally follows the left wheels direction.

If there's some handy and it fits, map your drive out on square/graph paper. It'll help affix your drive down to a minimum of drift error.

You could use someone like me on your team, Matt!