Machine tools must come before new factories

Accounts of quickly established shadow factories can hide the years of preparation before their opening. Plans and tool-manufacturing capacity had to develop before new production lines could operate. Shortages of machine tools constrained British expansion and the establishment of facilities elsewhere in the Empire, including Australia. Overseas purchasing offered limited relief when American and European manufacturers were also fully occupied. Lathes, forges, and other production equipment must themselves be manufactured before finished goods can follow. Modern robots and factory automation add complexity to that requirement. A limited pool of specialist suppliers can therefore constrain reindustrialisation before the new factories begin producing anything, with raw-material access forming another dependency.