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Lunar Base Regolith Additive Manufacturing Engine.

Models how NASA and Private Space companies avoid bankrupting themselves by utilizing ISRU (In-Situ Resource Utilization) to 3D print moon bases out of toxic lunar dust instead of importing steel.

## The Billion Dollar Brick

Gravity is the most expensive force in the universe. To escape Earth's gravity well and safely land an object on the surface of the Moon requires astronomical amounts of fuel. NASA estimates it costs anywhere from $500,000 to $1,000,000 per kilogram to soft-land freight on the Lunar south pole.

### FAQ

**Q: How do you build a 400-ton concrete complex on the moon without going bankrupt?**
A: ISRU (In-Situ Resource Utilization). You don't bring the concrete with you. You bring a 15-ton autonomous robotic 3D printer. The printer drives around the moon, scoops up Lunar Regolith (highly abrasive moon dirt), melts it using concentrated solar lasers or microwaves, and slowly prints the walls of the habitat layer by layer like a giant cement extruder. If you can print 95% of your base using local materials, you save the US Taxpayer hundreds of billions of dollars in rocket fuel.