Here are a few images from the process used to cut our very first U cores - for your pleasure
As I mentioned, it takes several attempts to do this, but we learned and have refined the method. The cost is always going to be higher then using a mold to cast the cores. I am letting you know that we can manufacture these types of cores, but this is foremost used only to get the correct value and getting the correct value is not the most easy task at hand. But we are getting there.