WARNING!!! ALWAYS CHECK HOW DEEP BOLTS CAN GO INSIDE YOUR MACHINE BEFORE SCREW THEM ON THE STAND.
It seems that in some machines using long bolts can arm your control board: Link
EDITED: Analog Four + Push stand pictures added.
My new two tier stand just got laser cutted.
I use a MOTU Ultra lite interface and a MOTU Microexpress, the stand councils both interfaces below the machines.
If someone wants the blueprints just ask.
And the new Mk2 that still need a couple of finé tuning.