Monitor stand/riser Ikea lack shelf

Monitor riser with three drawers to fit around the Ikea Lack wall shelf 38 mm thick.If you have a thinner shelf or plank, look at the other print profiles (work in progress).I used a shelf with a length of 57 cm, but you can use a longer one and print more drawers, or just one on the left and one on the right.The knob is just glued on; it's plenty strong for its function.All parts print perfectly without support. I printed it in PLA and in PETG; you can combine both even within the same riser if that's convenient color-wise.Instructions:Step 1: Put the shelf between the legs; it's a friction fit, so push firmly.If you want, there is an extra hole on the back to lock it in place with a little screw.Step 2: Lay the shelf on its top on a flat surface and align the three (or however many you printed) guide rails. There might be a mm or two of play to allow for differences from shelf to shelf. Just spread it evenly.Step 3 Mark the 6 holes per guide rail en drill the according to