Low budget plasma setup, what do I need?

I am aware of that Tommy

Next part in the printer so then it can be possible to test Y axis.

not a good part to be printet
and printed part on plasma is this realy a need why not using standard Parts like UCP and AL-Mount

So my results must be pretty annoying for you bbsr_5a as all parts are 3D printed.

everything looks supper light so i don't think it will be a problem with everything as long as the weight is kept in mind. i don't even think acceleration will be to much of an issue with such a light weight build. I've see ATC tool changers made with mostly 3D printed parts that worked just fine. so it's an option if you have one to work with. it all depends on what you have to work with and basing your designs around what you can do yourself to keep costs down. that goes a long way as long as you can think outside the box heck I've even seen a light duty router / engraver made with a 3D printer and was surprised by what it could do, i say print away as long as it lasts a while go for it. come to think of it i seen a 3D printed floating head for plasma done too

They are plastic.

Time to start pondering around Z axis and floating head.

So, is the floating head a must? Pros and Cons?

IF your torch has a shielded tip, you might be able to get away with just ohmic sensing but I think your machine doesn't. YOu really should have a float switch. PLasmac's new probing routine relies on it to provide room for the Z axis to slow to a stop. ie. YOu will need to allow some overtravel to allow for this..