Improved Gas Cap - Friction Lock

This is a simple and effective gas can cap. It is designed to be printed with PETG for durability. It locks through friction (the interior is chamfered 1.4 mm) and has a hole for a string/wire. The overhangs are chamfered to avoid print failures or needing to use support (a problem that many gas cap models struggle with, especially when printed with PETG.) The 3D model's interior diameter ranges from 20.50 mm towards the bottom to 21.525 mm towards the top (measured in Fusion 360), which will enable it to fit many gas can spouts without any scaling. (note that your printer setting and filament shrinkage will effect actual size). If needed, the model can be scaled to fit spouts slightly larger or smaller, and the chamfered design is forgiving of minor measurement inaccuracies. For my printer, this comfortably fits spouts ranging from 20.40 mm to 21.40mm without scaling. This model is not designed to “click” onto spouts that have a hook to grab the outer ring of the cap, it is design