Lots of work put in the Mark II, too bad it didn't work out in practice. For Mark III could you consider venting out the back of the box and having the fans at the end of the vent? As heat rises, you could have your exhaust pointing upwards and your intakes coming from the floor. If you have two intakes I would imagine you would need two exhausts or an exhaust fan equal in efficiency as two intake fans.
It's tricky to outdo the projector manufacturer themselves since you still need fans. I might suggest a design that incorporates some of Noctuas 20 cm gigantic silent computer fans or something. For construction material, perhaps 8020 t-slot aluminium, extremely easy to bolt together with fasteners, and for a project like this it could be the lightest thinnest version - 1 inch square diameter, I believe, and it does come in black, with one or more sides flat and more attractive (the parts that are seen on the outside). The good answer would probably be for the projector manufacturers to just build a much larger projector designed to move air quietly with 15 cm or larger fans or something, but many people would probably object to a projector that size instead. Glad my own LS800 UST projector is almost silent when I dial the laser down to 70% or so.... and the noise that remains is up front and not behind my head.
You could also 3D print any necessary ducts, but of course that requires a 3D printer and minimal skill at using a cad program, but even Tinkercad could suffice.
Thank you for youe video, very informative. What is that large panel on the ceiling? I realize it's to block or attenuate the sound, but what is it made of and how did you mount it? Just some brackets, plywood, and felt? Or is there more exquisite trickery involved? Thank you!
@@DimaLitvin thanks 😀 yes the panel from the ceiling has some tricks involved. It is a 1000 star ceiling in a series of hanging panels held by chains from the ceiling. The panels have mineral rock wool set in them for acoustic purposes as well.
