Router / Plasma Prototype Build

Oh My, a Steel build; it's tough, no lose screws, no sagging, no aluminum to flake off on rollers, weld fasteners only 1 wrench needed, use some metal v-groove bearings on top of angle iron and plastic tire bearing under, build your gantry out of steel angle, use single fold drawer glides for Z axis, since your familiar with steel us it all the way and save $$$.