Here is a thought: anyone considered the accuracy of induction heating for a build platform? Or even the hot end? I know it’s quick accurate heat. It consumes less energy when applied to ferrous metals. So there would need to be a thin steel sheet on the base of the plate for max efficiency. What are your thoughts on this?
Interesting idea. I just saw my first induction cook top on a trip to Europe last summer. I’d be interested to see if the concept could be brought to heated beds.
I’m not sure if there’s room for an induction coil on a hot end, or if it would weigh too much.
I get bubbles forming concentric circles patterns when bringing water to a boil in 1cm thick pans on my induction cook top. Not actively trying to be a party pooper but I think you’ll run into issues getting even heat out of induction hearing a flat surface. Also, the heat transfer needed makes thin metal melt way below the power used in a cook top. How thick of a cast iron (best material for induction heating) heated bed would you like to move around with your steppers?
Why does a bed have to move?
induction doesnt require metal to melt. and coils come in various sizes and types. Those commonly found in cook tops use flat rings for the coil with larger gaps. Thinner coils with narrower spacing could be used. Also just like pcb heaters are unevenly heated as are silicone heaters and elements a heat spreader (aluminum plate should be used below the glass/print surface) as to too big for a hot end. coils often have leads running to the machine. coil sizes can therefore vary as can the diameter of the material used to make the coil. most use copper tubing as it is easy to work with and readily available.