Here you will find the UDL source code for an example of a Snooker particle factory:
http://www.dem-solutions.com/support/files/examples/Snooker.zip
This example shows the use of an external factory to generate particles in non-standard packing.
http://www.dem-solutions.com/images/sup ... actory.jpg
Please take a look at the code for your own project and remember to come back and post up any modifications or code snippets which will help other users along the way. Feel free to use this forum for asking questions about this contact model.
DEM Solutions Team.