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Really the load of reverse forward switching is place mainly on the ESC's as a power spike is produced so im using these ESC's that should handle the loads. Also as Brushless motors are not too expensive It shouldn't be much of a problem having to replace them. Of course there is a possibility that it completely fails and then I have alternate options.
This is my drive system design still needs some work but should fit into my design without making too many problems
Hi Jon,
Like the CAD design,
Just a quick question
Do you know if that brushless motor reverses or not?
Thanks
Don't all brushless motors reverse?
I believe all brushless motors reverse, it is only sme brushless speed controllers that don't reverse.
Unless the brushless motor has a very rare way of windings on the stator, it can reverse. Just switch 2 of the wires. But, it's can't reverse when it's already running. It will just keep on running in the same direction.
So, the bright spark that tries reversing a brushless motor with an extra H-bridge on 2 wires won't enjoy an instant reversing motor.
so a translating spinner/melty brain cant reverse?
couldn't it get stuck in the arena walls and floor without being able to reverse very well?
It doesn't matter if it is a melty brain robot as the motors always spin in one direction and just break at certain points in each spin to make it translate across the floor. It only needs a reverse if you want it to spin in the other direction
It will reverse very well just I would need to do a complete stop before reversing although if you get stuck as you suggest you are already stopped, so it shouldn't be much of an issue. I would aim to keep away from the walls of the arena as it is possible the contact would send me flying with the forces my robot will put out, Therefor it would possible to end up outside of the arena.
One key feature of my design is that the whole weight of the robot is its weapon, and the new concept allows for two ways of attack, either spinning one way to hit the opponent with a wedge to flip them or in reverse where I would give armour penetrating blows with the spike. If someone's using 4mm Hardox or titanium (anything equal or higher strength) armour I would not use the spike because it would have little effect.
I also have a wide range of control options for my robot as the Arduino is what controls everything on the robot acting as my failsafe and translation controller giving me the ability to program in a feature which prevents the motors from reversing until stopped.
Overall the design is a "New" and more complicated "electrically" than other robots although "Mechanically" it is simple.