What changed
Patch 0.4.0.62 merged the Replicator and Refinement Module into the Workshop interface. Patch 0.4.0.93 enabled direct equipment repair from the Refiner.
How to read older guides
An older guide may describe the Replicator, Refiner or Refinement Module as separate destinations. Check its patch date before assuming the menu still looks the same. Exact recipes and slot unlocks are intentionally outside this overview.