Howard Johnson Replication Tube Claim

[PaulLowrance]

That's a nice start. There's a lot of torque with those PM's, but alnico & hard steel will be a lot weaker, so it might be good enough for those.

The only question is, where do you buy alnico PM's. I'm wondering if mylow's design works if your replace the alnico's with hard steel, and replace the hard steel with alnico-- a reverse. That way you only need one alnico.

PL

[JuanDelaTorre]

Here is my replication so far, I am using standard Radio Shack magnets. Have not achieved a full revolution as of yet but this is the first
model.     http://www.youtube.com/watch?v=tBWXyE6zLdU&layer_token=72f5beb619fcfc16

@billmehess

Nice Job.  I wanted to add and point out this article about mylow:

http://pesn.com/2009/03/20/9501532_Mylow-replicates-Johnson-magnet-motor/

Most importantly (about the middle of the article), notice the 3 and one 4 magnet arrangement.  You should try something like this. Good luck.

[billmehess]

I've read all the posts, this magnet combination that mylow is using does not seem to work for me. Of course I am using really different magnets so I am sure this has a lot to do with that. Also I believe that my disk at 8" is to small. I may be getting some reaction from the back of the stator against the pm across the disk.
I will build a much larger disk with more magnets. Hopefully this will allow me to power through and complete the revolution. Will see.
Thank you for your interest
Bill

[PaulLowrance]

Bill,

Would it be possible to replace your stator PM with magnetized hard steel? Stainless steel would qualify as hard steel. I'm not trying to distract you from what you have in mind, but offer some more possibilities, possibilities that would give you a chance of succeeding.

PL

[chrisC]

Here is my replication so far, I am using standard Radio Shack magnets. Have not achieved a full revolution as of yet but this is the first
model.     http://www.youtube.com/watch?v=tBWXyE6zLdU&layer_token=72f5beb619fcfc16

@billmehess

Thank you for sharing and actually DOING something real to replicate. This thread is filled with people who just TALK, TALK and TALK! Just less talking and doing something like yourself would be so much more meaningful.

cheers
chrisC