what are you going to control that with? what kind of motors are you using. there are a lot of different steppers out there. what kind of a maze is that? what part of a circuit/schematic do you need?

please discribe the ideas you have. we dont want to do all the job for you as this is still your challange/competition. what sensors are you going to use etc. and when you get into trouble then ask something speciffic from us. all those things you want from us can be written into a book and for that we want money... exact questions like "i'm trying to do this but it is not working like this so should i try that?" are wery good.