Haha! A rotary axis! You're teaching me 4D chess and I'm still playing checkers! I like it!

I have considered an open apron and I am probably going to incorporate that as I would like to try my hand at CNC dovetails and such as well. My 4x4 size is more or less arbitrary... in my head I think ' what if I wanted to build 2, neck through 34" scale bass guitars with bodies the size of... IDK, like a 335?' 4x4 seemed big enough but the specific size was yet to be truly ironed out. I'll give some thought to this and really hone in on what makes sense.

Looks like I'm closing in on breaking out Fusion 360 scratching some lines.