Post Cap
thingiverse
On my deck I loosely covered the 4x4 deck posts in cedar, so they're about 5-1/4 x 5-1/4 inches, varying by 1/8 or so. Deck post caps cost upwards of $5 each, and I couldn't even find ones the right size. 3d printer to the rescue, custom-making them a few at a time to fit the different post sizes. Because of a reddit thread I thought I would put a few of them here. If these are useful but you need different dimensions and use OnShape, feel free to copy my document and adjust the postSize variable. https://cad.onshape.com/documents/84a81322bdef425c694bda12/w/ffeb1c96fb6544efcf52c51a/e/fb121cad4b4a448954a2d187
With this file you will be able to print Post Cap with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Post Cap.