Thanh ray rèm lắp âm dạng mô-đun (Modular Flush Curtain Track)

Check out the process from sketch to install, then give it a print: 

Notable Notes:

Curtain rods leave gaps and purchasing tracks is expensive plus they allow noise and light pollution. This modular flush mount curtain track seals well against the wall or ceiling. Features include integrated dovetail joints for infinite length and a lip for a second heavy duty light block acoustic curtain layer.

This is a functional Prototype in an active testing phase. Community feedback is helpful to perfect the design.

Print settings:

Material: PETG 

Walls perimeters: 3 or 4 (alternating an extra wall helps strengthen)

Infill: 17% Gyroid (helps minimizing warp)

Glue: while the dovetail and mounting on the wall or ceiling help align the track I did use some glue on the sides and dovetails

Working to create a solution here that can scale. Please share your build and testing results in the comments to help lock in the designs.