Thanks for your answers.

Im from Denmark.

What I mean with a robotic platform is to have the base requirements, to build different robots where I can use the same motors again and again (since its so expensive)


Im sorry I wasn't clear enough, my patience was running out since I was typin on my mobile..

The robot I want to build is a robot which can cary a high load around for me and follow me, think like an industrial kind of way. (onroad and offroad)

So im not looking for a fast robot, but a robot with a high torque but still move around with a speed of 6-8 kmh maybe.

The budget is with a motor controller. (I would like it to be, with and without the control of a radio-controller.

voltage around 24 - 72

the platform will be around 50 -100 kg, and lets say to carry 500 kg? even more will be great.

The first type is to follow around with me.

The second type would be to have 2 of them working together, maybe moving a car.

The reason of differens weight classes was both because of curiosity but also in terms of building a small scale version first.