On: A home made PCB stepper motor

[jacquesm]

If you have a bunch of magnets lying around have a look at Halbach arrays.

[buescher → jacquesm]

Wow; I knew something like this was possible since we've all held refrigerator magnets and such that obviously had oddly arranged fields, but I only had the vaguest idea. Thank you.

[jacquesm → buescher]

Halbach arrays and some correction coils can be used to make a passive magnetic bearing (long sought after holy grail). They are super interesting.

[agumonkey → jacquesm]

I've seen that a few years ago, for denser motors. Do they have any other use ?

Thanks for the suggestion nonetheless

[jacquesm → agumonkey]

Levitation through forward motion, passive magnetic bearings, what's not to like?