Soda Can Lid

thingiverse

0.2 layer height is used for printing in PETG, but scaling to 101% might be necessary. If you want the design as watertight as possible, consider printing at 100%. Then, sand down the lip until it fits snugly on an open can. Closed cans are sturdier, but who needs a lid for unopened cans? To smooth out the lip after sanding, use an open can to wear it down by rotating it while fitted.