This tool is a blender file with a set of geonodes and custom chain links. You can use it by adding blender to your asset library for permanent and convenient use.

    To add it to the asset library, you need:

1. Save this blender file to a convenient place for you
2. Open Edit -> Preferences (1-2)
3. Click on "File Paths" (3)
4. Next, press the plus and select the path to the saved blender file (4)

    Or you can append this collections with links and GeoNode to your Library)

    To use this tool in your projects, you must open the Asset Library panel if you added it as mentioned earlier, or append a collection and a geonode from the downloaded blender file (5).

!!!To use it, it is always necessary to add a geonode to a new project file, otherwise blender will not find it!!

    To create custom chain, you can see how they are made in the project, but here are a couple of points that should be clarified:

1. First you need to create a collection
   
2. Next, at the origin, create the chain link that you need, consider the location of the axes, it must match the figure below
   
3. The first element in the collection hierarchy must always be the chain element
   
4. The second element can be a clasp if you need it.