Steam Punk ?
Nooo, it is vacuum/pressure pot in one. Chamber is from 5mm steel, and the lid has a thread, so cannot be popped up by pressure. Whole thing can hold much more pressure than I need (2.5 bar).
All non-critical parts (small locker for example) is made from garbage laying around, waiting for garbage truck to arrive...
Vacuum pump/compressor is fixed with 4 screws and rubber mount (to avoid vibration) inside the locker.
It is ugly as hell, but, I tried it both for vacuum and pressure, and it works like a charm
The only thing is missing is glass window to see what's going on in there, but it does not bother me, cause for pressure I do not need to see, and for the vacuum, I open the lid three times anyway
So, the bust is swimming in the rubber bath, first "buble-free" casts expected monday
Regards !