Drypoint Etching Tool

This is a drypoint tool, designed for etching into plastic, soft metal, etc, to produce a blank for use in a printing press, for example the OpenPress project, the version of which we printed for our use is here: https://makerworld.com/en/models/1931380-open-press-project-postcard-printing-press?from=search#profileId-2073362 The intention is to use a simple nail to create the point for your tool (which can easily be replaced should it wear down), but otherwise have a simple pen-like tool to use.I used a nail 50mm long with a 2.2mm dimension.In addition to the printing profile and STEP files, I include the Autodesk 360 file with three parameters which adjust the tip according to your nail/needs.