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Banned on 1/22/2011 for repeated rule violations after multiple warnings. Registered Member #3299
Joined: Sat Oct 09 2010, 08:11PM
Location: Bantown, USA
Posts: 220
Two magnets, 2 nails with about 100 turns of 28 gauge wire on each. input 12vac @ 1.2 amps @ 60hz
Lol the heat from the electromagnets melted the hot glue holding them in place and they crashed into the armature at the end of the video
this took me about 3 hours to make, i thought it would be a good example of a induction motor
Banned on 1/22/2011 for repeated rule violations after multiple warnings. Registered Member #3299
Joined: Sat Oct 09 2010, 08:11PM
Location: Bantown, USA
Posts: 220
I have a tri pod but I not at my house for some odd reason
I'm gonna make the magnets 90 degrees apart that will help a bit
Registered Member #1565
Joined: Wed Jun 25 2008, 09:08PM
Location: Norway
Posts: 159
It looks more like a synchronous permanent magnet motor to me, rotor of magnets e.t.c.
Could someone explain where the induction part is going on, since I only see to electromagnets pushing and pulling two permanent magnets spinning around.
It's a neat construction, maybe not that efficient, but it clearly shows a point :)
Banned on 1/22/2011 for repeated rule violations after multiple warnings. Registered Member #3299
Joined: Sat Oct 09 2010, 08:11PM
Location: Bantown, USA
Posts: 220
yeah I guess its synchronous, this thing is soooo touchy its hard to get it too run, i got REALLY lucky in this video it started on its own, most of the time i have to spin it
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Yea that is an AC permanent magnet motor, an induction motor uses an electromagnetic field greated from field 'windings' in the rotor which at powered my transformer action which is excites from the stator coils. The electric fields oppose, etc. Like a washer tosser, in theory, except instead of a linear motor, it is transformed into rotary.
Banned on 1/22/2011 for repeated rule violations after multiple warnings. Registered Member #3299
Joined: Sat Oct 09 2010, 08:11PM
Location: Bantown, USA
Posts: 220
Yeah i realize that i was asleep when i thought of the title
Banned on 1/22/2011 for repeated rule violations after multiple warnings. Registered Member #3299
Joined: Sat Oct 09 2010, 08:11PM
Location: Bantown, USA
Posts: 220
It self starts if the magnets are near the coils, put if it is right next to the coils it just buzzes. for some reason my magnets keep degrading with this, i need stronger magnets, and a bigger core for the coils besides a nail
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
ubuntupokemoninc wrote ...
and a bigger core for the coils besides a nail
Three words. Microwave oven fan. The core and coil will work great, if you use high enough voltage to get the current/turn needed for strong enough field.
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Lego based Induction motor
