Match your modpack and file format
Check the source Minecraft version, mod list and file format. Building Gadgets and Litematica use different import workflows, and modpack recipes or configuration are not represented by the structure preview.
Inspect materials and ports
Use the material list and layer view to inspect the casing, glass, ports and coils. The SPS uses power to process polonium into antimatter; check the creator’s notes for the required supporting systems.
Check the build in a test world
Keep the original file and verify orientation, port modes and multiblock formation after importing. The website displays saved blocks, not a working simulation of the machine or its production rate.
Common questions
What does SPS stand for?
Supercritical Phase Shifter, a Mekanism multiblock. Its common Chinese name is 超临界移相器.
Does every download include the supporting production line?
No. Some builds contain only the multiblock structure. Check the material list and the creator’s description for power and processing equipment.