API Master Test Kit Test Tube + Bottle Rack

I've redesigned waleedk's test tube rack to match the newer version of the API test kit. On the newer version, the bottles are a bit larger. Along with that, I have also added a stronger background plate so it doesn't break off easily. I've also added fillets where possible to allow easier fitment of test tubes and bottles. I'd recommend printing at 101% scale for a tight fit since tolerances will vary. If using ABS or PETG, scale to 105% to account for shrinkage. Print in white for easy readability. I've also included the SolidWorks file for manual adjustments or further modifications.