Hey guys,

So I am more on the EE side of these things, but have already received a lot of really good advice here thus far.

Unfortunately I can't do cast, which might be best, but I am trying to build out/design my gantry design.

Thus, with steel, am I better off looking at a carbon steel or some sort of 'mild steel' alloy? And, especially with the second choice, there are so many options: (4140A, 4140H, 8620, 4340, 52100, etc).

Obviously with my design I am not looking to produce parts for NASA or something (or that level of spec),
but some input on material choice would definitely help.

Thanks.