About this 3D model
I designed this end cap to aesthetically match the modular filament rack design, which is octagon shaped. Interior dimension of ½" EMT is 0.622", and the plug is 0.625" for a snug fit. Exterior dimension is 1". You may need to modify plug dimensions based on how you've deburred the pipe. Modular Filament Rack: https://makerworld.com/en/models/31066 Displayed in SunLu PLA Wood. Includes 1, 4 and 8 pack profiles for printing convenience.