The mk1 fully magnetic levitating flying wheel 4 of 4

In this video you can see at the end of the 4 rota/wheel arms I fitted 4x drive magnets and two concave coils activated by a reed switch the position of which acts like timing on a car as you can see when it first starts up it accelerates slowly but after a bit of tweaking the position of the reed switch the flywheel/ rota gets to a good speed

I should mention that this is only on a 9v power supply.
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