i hope the renderings are okay to picture the functions.
but i would like to make the mechanism of the drawers for the air-filter
and the one for the silver chaffs more clearly to you...
simply push on the logos and then they open up automatically.
the same procedure works for the water-tank.
push the symbol and the tank opens up to unload manually.
the drop-stop is solved with a passive magnet that is integrated into
the top of the can and a valve inside the filter.
the cover of the bean-chamber could be transparent and constructed
out of plexiglass or glass.
and referring to the “missing” wood…
i assumed it was a trick question;) i think, mr rams would never ever
design a KITCHEN machine fabricated in a wooden body!