Modular and re-usable plywood furniture connectors

Model created by Keither and uploaded to Printables - see link opposite

Use these connectors with plywood, MDF, or other panel products to build modular, customizable, and reconfigurable furniture. You can create tables, shelves, stools, computer monitor stands, or other organizers. These furnishings are perfect for student dorms, children's rooms, and any place where the layout frequently changes: you can disassemble them, they store flat for storage or transport, and you can reconfigure them again and again

The inside of the connectors features small grooves that help hold them in place. They are very strong — I can stand on a shelf without it breaking — but, as a precaution, do not use them as ladders or step stools

The included models and print files work perfectly with nominally ½" plywood. Mine actually measures 0.508 inches, or 12.9 mm thick. However, plywood comes in many different thicknesses and is not always uniform. Once you have chosen the plywood you want to use, sand and finish it to your liking, then measure its thickness with calipers and adjust the model files' scale accordingly. They scale well for a wide range of thicknesses: so you can scale them down for ¼" (6 mm) plywood or scale them up for ¾" (18 mm). To check the fit, rescale and print the "foot" model (the smallest) to perform a test

You can use the most versatile "center" model for everything, or make the assembly a bit tidier by using the "corner" and "edge" pieces as needed. You may not need the "foot" model, but since it is small and quick to print, it makes a good test piece to verify that the fit is perfect

I have added a set of scaled-down pieces to fit nominally ¼" plywood. The actual plywood thickness was 0.214". To adjust the scale, I took the desired size, divided it by the size corresponding to 100% (0.508"), and multiplied by 100 to get the percentage scale factor: (0.214"/0.508") × 100 = 42.1%. I used these miniature versions to make a small extra shelf and drawer dividers. The foot model does not work at this reduced scale, as the thinnest side becomes too thin to print