For all the impatient Europeans who have decided to build a great Analog Sky Magic binocular and are missing the UNC 1/4-20 t-nut that is not typically found in our hardware stores.

I have prepared a simple reduction to M6 square nut so you don't have to wait and can enjoy your new binocular.

If you don't necessarily need the UNC thread for your photo gear you can use M6 screws for the slew handle/knobs (square nut is a bit loose but that's ok).

The bottom hole (for the tripod) is a bit tighter than the others, so use a screwdriver and some force.

You need 4 pieces, but I recommend printing one first and testing how it fits the model.
I am also attaching a Fusion 360 file so you can customize the insert.

The screw hole is covered with a single layer for bridging reasons. Simply remove it.

Used M6 nut size
M6x10x10x3mm or M6x10x10x2mm (Aliexpress)

Material
PETG

Layer height
0,2mm

Infill
100%