After a permissive start and the scale is tared. Parts and material are then robotically adds to the product, after which there is a second control trigger and weight capture. This is compared to the three check weighing bands to confirm the proper amount of material was actually dispensed. What was challenging about this project is that it is a 3 kg scale that measures 20 inches across and the tolerances are extremely tight (~ gram). The application uses an R423 programmable weight indicator running custom Lua script.