Hobby cnc . solder it your self . KIts have cnc contoller stepper motors . Proven technology i have and it works .built a cnc 24 by 48 all ball screws etc from china or amazon . ? if you want
I did hvac work for 25 years 1 1/2 ton server units for computer rooms and 30 ton box car units on top of buildings . Always used oxy acetylene and it was always called SILVER SOLDER at the supply houses .
Silver solder is the best .Sure Tig will work . But silver solder is strong enough . What pressure are you thinking of running ? Also does your state have boiler laws that legally should be followed ?Copper requires a lot of heat to silver solder . Two people are really needed one holding a...