Yea, needs to be upgraded to tuck tape to be engineering approved.
The temporary door (which lasted 6 months) was only cardboard with ultralight polycarbonate twin-wall sheet and tons of duct tape . I will NOT miss those days.
The chip guard on the left is laminate flooring - my favorite free material for milling.
There will ALWAYS be duct tape somewhere.
Small update:
I scored a used electrical cabinet that can house board and the power supply. A 24V fan creates a positive pressure to prevent any dust from entering (but will also pressurize the whole chamber if no vaccum is running).
There is now a (somewhat free-floating) cable-chain to the gantry and x-axis. Cutting the cable for the router was the scaries part.
Before installing the box on the left wall I will have to extend/redo some parts of my harness - again.
I also bought a solid z-probe that eliminated the worst and most error-prone part of each job.
Now I can switch tools, home X, Y and Z between jobs and have a reliable position - unless I forget about that Z-shift between jobs when the steppers are unpowered (and the spindle still running)
It is all coming together and 800€ christmas tree ornaments are on the way.