TDavenport

I would say more the concept. I am trying to get a sense of what realistic possibilities there are and then go from there. So for example whether the two magnets are square or round in cross section is not critical. 8.67 " is a maximum outside diameter. Less than that is OK. If someone comes up with a possibility, we can take measurements and see how that would work, but there is flexibility. There is also the goal, aside from an actual pair of magnets, of getting a better sense of how an 1837 blacksmith might have gone about such, both technique and materials. An area you fellows might well have a sense of. And perhaps be interested in. Thomas Davenport was a remarkable person, blacksmith and scientist, and well worth learning about.

thanks for your time and information! I will look into all suggestions.

Goal is to recreate an electric motor. One of Davenport's originals. Electromagnetic fields , we're fine on. Trying to get one that runs on a permanent magnet. About 8" in diameter will work fine. From Thomas Davenport link removed

I am looking to see what possibilities exist. As I said, a person or shop who might be capable. Better yet, done it. Good metaphor! I am looking for a Model T mechanic in a Tesla world perhaps. Field strength? Take what I can get. It would be part (the field) of a recreation of an antique motor. Have tried a number of known techniques but the material seems the lacking factor. Ya, paper clip level strength or a magnetized screwdriver about it.

Long ago blacksmiths made magnets. How did they do it? (am located in MA which is short for Massachusetts, USA)

Is there a person or shop out there that could make a pair of semicircular magnets about 8" in diameter and 1/2 x 1/2" cross section? I have precise specs I have attached, but only the outer diameter is critical (can't be exceeded . . smaller ok). Thank you! John - MA