APL
100 kW
- Joined
- Aug 6, 2018
- Messages
- 1,113
Single disc stator, yea.. I guess we'll find out, but it seems to be pretty stiff. I clamped some to a table, with a 3"
overhang, and put 30 pounds of weight on it, just to see how much it can take. It didn't bend very much at all,
maybe a millimeter or two, so I think we're good.
It is a spring though, and there might be harmonics that can happen. But I think it's WAY stronger than some of the
single rotor - double stator designs I've seen,.. where the rotor is mostly cut out for magnets. So there must be
a fairly good magnetic balance going on there between the coils, or those thin rotors wouldn't work very good.
In fact, given that there is a balance, I have to wonder if maybe the stator plate could be 3D printed out of ABS.
Perhaps when this build is up and running, I can go back and try it. It would be interesting to see what happens.
Anyway, I got some cores 3D printed, so now I can wrap some wire on a few and see how that goes. I made the tooth
lip 4mm thick, which may be a bit much, but this SMC stuff is pretty weak, and I don't like the idea of breaking cores.
The cores do have a radius on the tooth lip.. although the printer didn't seem to produce it very well on the high build
setting.
View attachment 1
I need to tweak the cad core drawing a little already.. and I can change the thickness easy enough if needed.
We'll see how it looks once the wire is on it.
overhang, and put 30 pounds of weight on it, just to see how much it can take. It didn't bend very much at all,
maybe a millimeter or two, so I think we're good.
It is a spring though, and there might be harmonics that can happen. But I think it's WAY stronger than some of the
single rotor - double stator designs I've seen,.. where the rotor is mostly cut out for magnets. So there must be
a fairly good magnetic balance going on there between the coils, or those thin rotors wouldn't work very good.
In fact, given that there is a balance, I have to wonder if maybe the stator plate could be 3D printed out of ABS.
Perhaps when this build is up and running, I can go back and try it. It would be interesting to see what happens.
Anyway, I got some cores 3D printed, so now I can wrap some wire on a few and see how that goes. I made the tooth
lip 4mm thick, which may be a bit much, but this SMC stuff is pretty weak, and I don't like the idea of breaking cores.
The cores do have a radius on the tooth lip.. although the printer didn't seem to produce it very well on the high build
setting.
View attachment 1
I need to tweak the cad core drawing a little already.. and I can change the thickness easy enough if needed.
We'll see how it looks once the wire is on it.