Has anyone seen Lasersabers new motor runs on 1000uf cap

[conradelektro]

@Gyula: the transistors you mentioned only cost 4 to 7 Cent, so I will order them.

@Mags: you might recall that Lasersaber's second 3D printed motor has 12 coils NSNS.... and 6 magnets on the rotor.

For your build that would mean 24 coils NSNS.... and 12 magnets on the rotor. Every second coil is connected in reverse. The action on the rotor magnets happens only between N S coils (not between S N coils), one coil pushing the other pulling.

But you might have different ideas?

Greetings, Conrad

[Magluvin]

@Gyula: the transistors you mentioned only cost 4 to 7 Cent, so I will order them.

@Mags: you might recall that Lasersaber's second 3D printed motor has 12 coils NSNS.... and 6 magnets on the rotor.

For your build that would mean 24 coils NSNS.... and 12 magnets on the rotor. Every second coil is connected in reverse. The action on the rotor magnets happens only between N S coils (not between S N coils), one coil pushing the other pulling.

But you might have different ideas?

Greetings, Conrad

Hey Conrad

I realize those things.  We can use just as many mags(NSNS) as coils(NSNS) as long as we bias the reed with a mag so it only triggers on every other magnet pass, or the rotor will just bing bong left then right repeatedly. Having more magnets, just as many as there are coils, will provide more drive force than just half the number of mags vs coils. 

Mags

[DadHav]

Hello Mags, Conrad. Thanks for spending some time on the one coil circuit. I haven't digested everything you wrote yet but I will get to it as soon as I clear up some real life issues. I also haven't read all the posts on the LS motor but notice the 6 north out 12 coil configuration mentioned at the beginning of the thread. LS explains a push pull effect from the configuration. Makes perfect sense, right? After the initial pulse there is then a generated sine wave from the other six coils as the magnet then passes the coils along with something from the coils collapsing right? nsnsns equal poles and magnets etc will produce something allot different as well as a reed switch that doesn't know north from south, No? Bifiler with a transistor would only fire on one pole or half the magnets. Hmm with equal poles and coils as well as bifiler / transistor you mighe have all push or all pull. You could make a mini commutator disk with any small magnet configuration you need to work with the reed switch. Timing would be simple as well. I always wanted to do this for my window motor but never got around to it. Sorry I haven't been able to keep up with what's going on here. I'll try to read up so I can make some sense when I comment. Take care.
John Hav

[TinselKoala]

@Mags: Thumbs up! I especially like the trim fasteners for bobbins.  I can't afford a spool of wire and I don't have the tooling here necessary to attain the precision required or I'd be joining you folks in your builds, I love a good pulse motor.
But I'm watching.... so good luck and continue the detailed reports please!

[TinselKoala]

A unipolar latching Hall sensor like the one Sparkfun sells might do the trick. It turns hard ON with one polarity, stays on until it sees the opposite polarity then turns OFF, and has the open collector output so it can emulate the reed switch directly in the circuit. Maybe. They only cost a dollar, why not try one out. And the box that they mail them in is itself pretty neat.