12mm cap 3d model

"Design a small cylindrical cap to plug a twelve millimeter diameter hole. The cap should be three millimeters tall to match the lid depth, with a very thin top wall — make it as thin as possible while keeping it printable, around zero point five to one millimeter thick. The bottom should have a slight interference fit or small lip so it snaps securely into the hole. On the very top surface, emboss a bold capital letter W, about eight millimeters tall. Keep the whole thing simple, smooth, and easy to print."