I need to make a 10 slot BLDC inrunner motor core that is 40mm wide has 10mm inner diameter and 10mm thick. How would I make this? I would want to make it out of mild steel but I do not have a CNC machine and only a 3d printer. If anyone knows how a company that can CNC for me then send me parts, that would also be great(Bit like JLC PCB 3d printing service) as I think CNC is probably best route for this. Ideally I would like 8 of these cores.