Here's my solution to efficiently producing quality modules. It produces 4 quality module 1's then a quality module 2. When there are four quality module 2s, it produces a quality module 3. Only five assemblers are required, one for each quality level. The key to making this work is the Selector Combiner set to random input with an update interval of 255 to give the assembler time to load and start assembling.
Screenshot 2025-08-21 072420.png (344.75 KiB) Viewed 432 times
The blue print can be modified for all 5 levels of quality.