How to Craft Cluster Launcher
Cluster Launcher is possible to craft with Engineering, its possible to get Cluster Launcher Recipe by completing a quest, you can find more information about quest on this page.
Ingredients required for Cluster Launcher:
Cluster Launcher is a Engineering craft in WoW Classic Era — miscellaneous / holiday requiring 275 Engineering skill, and one craft yields 2.
Where to learn Cluster Launcher
The schematic for Cluster Launcher is not taught by trainers — it is learned from Schematic: Cluster Launcher, a quest reward.