(ET) More magnets and motors

[Chris Zach <cz alembic crystel com>]

Getting better at this: Took apart a thin motor that had some sort of a 
collar on the front of the shaft. Might have been for a grass sweeper. 
Anyway it looks like the thin motors have completely different bearings 
so I'll have to order a different set.

One of my thick motors is in the process of having the loose magnet 
cure, the adapters I built out of wood work perfectly. The other motor 
has a magnet that broke into two parts, this could be more complex to 
repair as the parts strongly repel each other. But what I might be able 
to do is glue the first part in with the spacer between it and the other 
magnet and the center spacer to press on it, then later put the broken 
part in and use the second spacer to force it against the first magnet 
with a lot of JB Weld. We'll see how good that stuff really is....

I'm assuming JB is the stuff to use for this.

The big motor is complete. With the copper washer all the way down the 
shaft evenly followed by a small rubber seal followed by a large seal 
it's as good as it will get. I may mount it up this weekend with the fan 
blade and shroud to see how much vibration there is at 12v, 24v and full 
36v... Hopefully it's smooth.