How to create a Material block factory in EDEM?

Are you looking for Volume Packing tool?

https://community.altair.com/community?id=community_blog&sys_id=1a09367e1bcea850c4dfdbd9dc4bcb09&view_source=searchResult

Volume packing fill your volume with the desired volume packing ratio, based on a solid geometry.

For Material Block, there are a few instructions in the documentation.

Hi, 

We also have the EDEM e-learning:

https://learn.altair.com/course/view.php?id=147

Lesson 11 (EDEM Creator: Material Bed Creation) and lesson 12 (EDEM Creator: Material Block Dynamic Factory) cover the block factory options.

Regards

Stephen