Cost of machining new housings?
 

how much would it cost to have new housings machined? I have the tooling availiblie less a resurfacing machine. They are iron? cant remember. But if i made a program for the CNC machine would it work if it found a way to finish the surface?

no matter how good your cnc machine is, you'll never have enough surface area to make the surface flat. You'll need to bring it to a lapping place where they lap the surface.

so if i machine the housing, i could have the lapper do the rest?