steven chiverton
Senior Member
even though steven gibs electromagnet design states a 1 inch diameter core i found some people have had over heating problems with it and so i increased my core diameter to 2 inches and it works better and i used high temperature polyimide kapton tape a few layers between each wind before i finished with a few layers of high temperature silicone tape so i ran mine for an hour and it dident get hot so the idea for a thicker core is for better heat sinking , i used 21 awg triple enameled coated wire , i just cant explain why i have both north and south poles at the one end and if youve seen my video it was hard doing it as i had to hold 2 watches close and move either one in such a tiny movement to get it in the right place and that was hard as if the positions had to be precise to get the effect i got.