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e*clipse · 02-25-2016, 02:22 AM

This is a follow up about the rotor test.

I placed a piece of iron ( the MGR's counterweight ) near the rotor. If you rotate the rotor while holding the iron near it, there are 8 evenly distributed distinctive places of magnetic attraction. This is a very strong attraction - it can really hurt that finger that is between the iron and the rotor...

I also tested the rotor with a small magnet. This is one of those magnets used to retrieve parts you drop when working on your car.
The result were quite different - about 12 non-evenly distributed attraction places. This is probably due to the v-shaped arrangement of the magnets in addition to the magnet's polarity; I'm not sure.

I'm not sure if this helps; it certainly makes it difficult to visualize the rotor's alignment with a magnetic field.

E*clipse

02-25-2016, 02:22 AM	#352 (permalink)
e*clipse Permanent Apprentice Join Date: Jul 2010 Location: norcal oosae Posts: 523 Thanks: 351 Thanked 314 Times in 215 Posts	This is a follow up about the rotor test. I placed a piece of iron ( the MGR's counterweight ) near the rotor. If you rotate the rotor while holding the iron near it, there are 8 evenly distributed distinctive places of magnetic attraction. This is a very strong attraction - it can really hurt that finger that is between the iron and the rotor... I also tested the rotor with a small magnet. This is one of those magnets used to retrieve parts you drop when working on your car. The result were quite different - about 12 non-evenly distributed attraction places. This is probably due to the v-shaped arrangement of the magnets in addition to the magnet's polarity; I'm not sure. I'm not sure if this helps; it certainly makes it difficult to visualize the rotor's alignment with a magnetic field. E*clipse