I am participating in a robotics competition. I am supposed to design and build two robots. Out of these, one cannot have a driving actuator (it can have a steering actuator though, fed by a line following circuit). The other is supposed to drive the non-driving robot through an obstacle course, without touching it. This is kind of driving me crazy since at one point the separation between the two robots is 60 cm (23 inches).

Ways I've considered:

  1. Wind Energy (wont work, need huge sails)
  2. Magnetic Repulsion of some sort

Now repulsion I've spent a lot of time studying.

My solution was to use strong permanent magnets on the non-driving robot (Neodymium,N52) and electromagnets on the driving robot.

But, after doing a huge load of calculations came to the conclusion that not enough force can be transmitted over the distance as magnetic fields fall off too quick.

Rulebook: http://ultimatist.com/video/Rulebook2016_Final_website_1_Sep_15.zip

I am really looking for even a pointer here. Is there a trick somewhere that I am missing?

  • $\begingroup$ It is an exact duplicate of that question, actually. $\endgroup$ Oct 29, 2015 at 21:38
  • 1
    $\begingroup$ Is it driving you crazy with or without an actuator? $\endgroup$
    – Octopus
    Oct 29, 2015 at 23:12
  • 1
    $\begingroup$ I have to say, those rules are pretty insane, and it seems to me only veteran roboticists would be able to tackle some of the challenges presented. Sounds like a DARPA project. $\endgroup$
    – Octopus
    Oct 29, 2015 at 23:22


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