1. Read the active key hint
Open the build interface and check the selection or Marquee hint shown by your current version. Early Access builds and guides disagree on the default shortcut.
Blueprints turn a tested factory module into a repeatable building block. The safe workflow is select → copy → save the clipboard selection → test one paste before scaling it across the map.
Open the build interface and check the selection or Marquee hint shown by your current version. Early Access builds and guides disagree on the default shortcut.
Drag around the machines and solid player-built blocks you want to reuse. Leave temporary piles and unintended terrain outside the box.
Use the copy action displayed by the current selection tool. Keep the clipboard selection active until you have tested a paste.
Open Building, then the Blueprint section, and save the current clipboard selection with a name that describes its input and output.
Preview the module in an empty area, verify orientation and reconnect inputs only after the structure is placed correctly.
The official Marquee reference says the tool selects player-built solid blocks and excludes pipes. Verify every pipe, launcher and connection in the paste preview. A blueprint that restores the shell but not the transport network can look complete while receiving no input.
Controls are version-sensitive. This page deliberately points to the live UI when published instructions conflict.