Random tools to manipulate Factorio blueprint strings
While there are already some of those functions built as mods to the game, one can not use mods while playing for the achievements
Tile : Arrange copies of the blueprint in a grid. E.g. take a six electric miner blueprint and tile 15x15 to cover even the biggest resource fields
Split : Split a large blueprint into tiles to make it easier to place in game
Mirror : Mirror the blueprint either vertically or horizontally
Upgrade : Decide what common upgradeable entities (e.g. inserters) to upgrade. Also supports downgrading (e.g. you have a great blueprint but not the tech yet)