Dumb question for experienced builders:seems that 99% of the mill builds are gantry type.
I'd like to have a CNC VM with a capacity greater than mini mill/X3, but smaller than PCNC 1100. This machine has to cut all commonly used metals, even if slowly. I have plenty of low and medium precision DIY metal experience.

I'd love to build a VM, but have a nagging suspicion that if no-one is building them there's a reason.