Revit + Dynamo + Just In Time Material Delivery

Hello, here is my proposal:


Basically, I create a list of type/instance parameters (that can be enlarged as much as needed) and I sort it by assembly name. Then I write to excel (one sheet per assembly type is required).
I tried to simplify it with Bumblebee but with no success (https://konradsobon.gitbooks.io/bumblebee-primer/content/120_write_data_to_excel.html). Any advice would be nice :relaxed: