home made brushless motor

home made brushless motor
battery: Align 3 cell li-po 11.1v
Reed switch
8 neodymium magnets
no bearings were used (performance would have improved greatly if bearings were used on the spindle)


neodymium are real strong magnets the setup i had used 8 neo magnets but with my setup it was really hard to get the magnets positioned in the proper place... this is partly due to the fact that i glued magnets on while eyeballing the position of the magnets. From what i saw when i used four magnets it actually had more RPM than 8 magnets because 4 neo mags accepted alot more human error. but if were some how able to perfectly align 8 magnets im sure the results would be great.

as for your question "Have you ever tried using more powerful magnets?"

im pretty sure neodymium is the strongest a average consumer can buy.

"a heaver wire?"
a heavier wire isnt exactly the best thing when making a electro magnet. What you want is length not thickness of wire. the more times you wrap the wire around the nail the stronger the magnet will me so i suggest getting allot of wire i would say 150ft is on the small side if you are looking for a good electro magnet.

"more votage?"
Sure more voltage would have given me more power but if you are using a kit from simple motors it probably comes with the same reed switch as mine which means you will have to becareful when increasing the voltage because the reed switch works on two metal strips touching and not touching if you have too high of a voltage the two metal strips might weld together. if you are looking to use the maximum voltage from the reed switch i suggest you buy a couple to test your self. I did not go beyond 11.1v because i only had one reed switch and with school extra credit deadline coming up so soon i couldn't afford to have the reed switch break on me and not have a working motor at all. Also I didn't have to go buy the battery because i had it from my RC helicopter( i tried saving money since it was a small school project). If i had a stronger battery a that time i probably would have used it

Also if you get a higher voltage battery you might want to get a heat sink for the electromagnet because at 11.1V my electro magnet got very HOT withing 10seconds i used hot glue to glue the electro magnet in place(not the best way to do things) and the electromagnet just melted the glue causing the electromagnet to get pull into the magnets.

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[DhruvShroff]

Could you post a video on how to make it ??? Loved the Motor !!!!!!!!!

Great job

[mobius1mike]

@DhruvShroff its just magnets glued with either all north or south facing out then the electromagnet is wound clockwise or counter clockwise evenly the reed switch is attached to one wire of the electromag while the other wire of the electro mag is attached to the battery. when you make a connection it will turn on. i dont have time to make a tutorial but you can go here to find a similar motor. simplemotor%com remove precentage symbols

[bruceandberni]

Sure, I understand. You were rushed, and you did an amazing job. I understand the physical aspect of what you have done, and I think the reed switch is great. I was just wondering about the timing aspect of multiple coils and switches. I actually saw another vid of this type on youtube after i saw yours. You did a great job. Perhaps, sometime, if you get the time and have the inclination, maybe you could do a multiple coil and switch version and post that. I'd love to see it.

Great job.

[mobius1mike]

@bruceandberni sure, im just waiting for the right time because i want to rebuild the magnets (maybe stick it inside a circular pipe) so i dont have to worry about it spinning off, also i wanted to add a speed controller and one way bearing so i can eventually add a prop for fan boat etc.

[sagabhcrew]

fuck your music!

[mobius1mike]

@sagabhcrew please dont

[chummaker1]

forget the music!!!!! tell us how you made it.

[astlin]

@llorencaguiar detects if rotor magnet passes near stator magnet to change to polarity of the last one.

[astlin]

i guess reed switch is too slow for high speed rotation. why don't you use a hall sensor?

[llorencaguiar]

What exactly does the reed switch do?

[BadSmaxx]

@Beulzabob WOW are you for real man? You have contradicted yourself at least 3 times in your little paragraph.. It is either a brushless system or a brushed system. Yet you state: "a reed switch is really just another type of brushless setup" So here you state it is brushless "associated wear and tear that the brushes in a brushless motor have" A brushless motor has no brushes to receive wear and tear.. And finally bearings have no bearing (excuse the pun) on a motor being brushed or brushless.

[aersixb9]

What is the source of magnets? Are they a mined element, or are they manufactured from mined elements with a specific technique?

[ChuffChuffWoo]

Smooth running! ;-))

[san42c02y]

the background music is irritating.

[crackbabykid]

put some ballering on it