About this 3D model

I have designed and made these shelf brackets to be used with Electrical conduit/ EMT tubing. The idea of the design was that i could make the bracket as large or small as I wanted, for different sized shelves. This shelf is 1070mm x 550mm and VERY strong. I printed the parts using PETG, I then drilled through the printed part and the metal tube with a 3.5mm hss drill bit, and finally, tapped the holes to suit a 4mm thread. (Had some 4mm thread bolts laying around) You will NEED to resize in your slicer!!!!! For 25mm OD tube i had to increase the size to 102% Enjoy. P.S Please excuse my messy desk.