Fixture's for this type of application are best built by an experienced Tool Maker so i would suggest that if you are not sure about the clamping pressures needed and or location of clamps and such you should consult a experienced Tool Maker. or the other method of this is trial and error wich...
I dont think that a lazer or waterjet has the capability to hold a +.000 -.004 tolerance. so i would also recomend using A2 Tool Steel and Grinding all guages on a serface grinder atleast for a square datum then harden them to a 54-56 RC and use wire EDM to finish. may be able to come up with a...