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In this work we present the concept of guided self-replicating factory(GSFR). This factory would be established as a colony on the Moon, Mercury,Mars, or Asteroid Belt. GSFR would grow by using in situ materials in order tomanufacture machines. The time it takes for GSFR to double it's mass andelectric power output is called a doubling period. After about 50 doublingperiods, GSFR would become a Dyson Sphere civilization, which can house$10^{16}$ people, $10^{19}\ tons$ of structure and machinery and have a grosselectric power of $3 \cdot 10^{24}\ W$. GSRF would contain four parts. Electricpower station would generate electricity for all other parts. Materialproduction system would gather ores or native metals and produce metals,plastic, and propellant. Material shaping and assembly system would shape metaland plastic into details. These details would be assembled into machines. Thesemachines would be added to all four parts of GSFR. Space transportation systemwould use fuel manufactured in situ manufactured in situ in order to facilitatetransportation of machinery and astronauts from Lower Earth Orbit (LEO) to thecolony. During later stages, space transportation system would also usespaceships fully or partially manufactured from space colony material.

Guided Self Replicating Factory for Colonization of Solar System