Modular Filament Rack

wanted a standalone filament rack that was easily expandable and that took a small surface area to print so that I could maximize the number of pieces that I printed at once. The result is a rack that uses ½in PVC for both the vertical and horizontal bars. The rack can be built with as many layers as you want. Using just the top/bottom pieces will get you 2 layers, but the middle pieces can get you as many additional layers as you want. The end pieces do not have holes that go all the way throug