Folding Screen Hinge for Photography Studio

I made some sturdy VFLATs for my photo studio from thick Styrofoam boards and 3d printed parts without using any tape – LOL. They came out great!The folding screen hinges are for 30mm thick Styrofoam boards. Thinner Styrofoam boards with 2 meters in length would be too wobbly. And yes the d=4mm x 40mm long wood screws hold pretty well in “quality” foam boards. I did a test prior to starting this project and was surprised how well they hold. I also use 5 screws on each side of the hinge in case I'm a little rough with the VFLATs.White styrofoam boards 2000x1000x30mmBlack matte, acrylic water based paintPaint rollerWoodscrews diameter 4mm x length 40mm (https://amzn.to/3WmYTwv)3D printed folding screen hinges3D printed corner protectorsPieces of 1.75mm filament as shaftI may earn a commission on qualifying purchases (at no extra cost to you) All infos and many more pics on my blog:https://www.schweinert.com/diy-studio-vflats/UPDATE: 2022-02-28 I just added a version for 1 inch (25,4m