Custom coin keyring with text

This is a highly customizable OpenSCAD script to create your own keyring enclosing a coin, that can be configured to allow any coin, o quantity of coins. Text can be configured, as size, font, etc. Once rendered with OpenSCAD the program echoes the heigth at where you have to pause your print to insert the coin, then resume the print to allow the printer to enclose the coin. When measuring your coin, allow some tolerance so your coin drops perfectly into the print. Take also in consideration a v