Large drop down rectangle ceiling mounted support

STEP files available in “Download STL/CAD Files”! Mount speakers or other large items to the ceiling with this robust support. Easy and fast to print and really large! The custom designed joint is really solid and easy to assemble. Use the maximum size your printer can do. The interior space is 233mm(9") high and between 400mm(15" ¾) and 450mm(17" ¾) wide.400mm(15" ¾), 420mm(16" ½) and 450mm(17" ¾) wide models are provided. You can mix two sizes to get intermediate width, e.g. print one 400mm and 420mm to get a 410mm wide support. Message me if you need different width or height. Use PLA Basic or PLA though. I'd recommend to avoid PLA Matte or Silk since they are more fragile. PrintingGiven the long length of the model, warping can occur. See the Bambu forums for tips to help with adhesion. If the joint warps, the assembly is going to be much more difficult. Reviews are appreciated!Had a failed print or you feel the model is not good enough? Please message m