Bottle drying rack - foldable

I needed a rack to dry bottles I reuse, but I didn't need it every day. So I decided to draw a simple foldable rack to save space.
This drying rack consists of 3 parts, connected using a 3x35 mm screw and a self locking nut.
It can support up to 6 bottles (I tested it with various bottle sizes with success).

There are 3 stl files named A, B and C: you will need to print one of each.