No studio view, but something else I'm proud of, as it's just as important in a rec room as as having a good workspace in the monitor room.
Just finished building the lower half of my "large gobo".
Two Gobo's and one corner trap:
The 2D QRD-Diffusor's are by HOFA (3x), didn't find a place for them yet.
GOBO / Corner Absorber Details:
The large GOBO is a 125x100x20cm (inside) design. The inside is filled with 10+4cm Rockwool (7kPa), the front and back is a linen covered (stapled on, two sides, 165g/sqm) wooden frame, attached to the large frame with brackets.
For portability, I mounted handles. The top design of the large GOBO will change. It will be an indepentent box that I can easily lift on top of the other box to create a "large GOBO", and if I don't need that, then I can split the GOBO into two to create a small booth for guitar amps or something.
The small GOBO is a 190x80x20cm (inside) design. Yes, that is a 8cm thick foldable mattress just pressed into it. No handles mounted yet (thinking about it). Will eventually build a second one to create some sort of flexible recording booth.
Don't know yet where to put the 2D QRD's. And if you're asking, the corner absorbers are 8cm (top) and 10cm (bottom) Rockwool, wrapped in linen (nothing stapled!), then pressed into 100x62,5x12cm (inside) frames. Mounted diagionally to the wall with picture brads, eyelet's and zipties(!).
If you're courious about the wood type:
Spruce/Fir (read: soft and light wood), 18-19mm thick. Frames are not screwed together, they were only glued with pegs/dowels as support. Then stained to get an oak and dark walnut look, then covered with two layers of transparent varnish (aqua based).
Now I only need to find the mood to finish the top part as well (read below, why). Because it only lacks the frames (with linen) and the bottom slat (along with staining and varnishing). Not to mention a sh*tload of dowel holes.
The other stuff took me way too long already.
Example (Corner and Wall Absorber):
Buying wood - half a day
Preparing (drilling holes, sanding) and glueing - 1 day
Staining - 1 day
Sanding and varnishing (layer 1) - 1 day
Second layer of varnish - 1 day
Wrapping Rockwool - half a day to 1 day (cutting linen, ironing, wrapping, mounting)
If I'm experimental in terms of dual color staining, then add yet another day. And in case of the GOBO, creating two wooden frames (glueing, stapling) took half a day, plus one day for drying, then another day for fixing (cutting to size if I did a mistake) and covering, plus a couple of hours for mounting.
So for Wall absorbers: 5 days
For a GOBO (full treatment): 7-8 days
And all with handtools (incl. Jigsaw and powered drill) and no help.