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I know this is an old post but while surfing, I came across this and instantly thought of it: https://newatlas.com/architecture/grange-close-3d-printed-housing-ireland/

"Affordable housing project was 3D printed in just 12 days

Named Grange Close, the three-unit terraced social housing project is located in Louth, eastern Ireland, and created by HTL.tech. It measures 330 sq m (3,550 sq ft), which is divided into three separate homes with a floorspace of 110 sq m (1,184 sq ft) each, over two floors.

The development was completed in just 12 working days, from the initial site preparation to the handover of keys to the client, a local council which will finish furnishing the homes and rent them to social housing tenants at an affordable price. According to COBOD, which provided the 3D printer unit, this build time represents a 35% reduction in build time compared to typical build times of similar homes...."

Technology marches on!

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Great points. It's hard to beat old fashioned wood framing. In his book The Very Efficient Carpenter Larry Haun talked about working with his brother and framing one small house every day. This was right after WWII and before nail guns!

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